merge: release 2025.4.2 (!1051)

View MR for information: https://activitypub.software/TransFem-org/Sharkey/-/merge_requests/1051

Approved-by: Hazelnoot <acomputerdog@gmail.com>
Approved-by: Marie <github@yuugi.dev>
Approved-by: Julia <julia@insertdomain.name>

142 files changed, 2668 insertions, 607 deletions

diff --git a/packages/backend/src/server/api/endpoints/admin/accounts/create.ts b/packages/backend/src/server/api/endpoints/admin/accounts/create.ts
index 1a47f56bc6..88490800cf 100644
--- a/packages/backend/src/server/api/endpoints/admin/accounts/create.ts
+++ b/packages/backend/src/server/api/endpoints/admin/accounts/create.ts
@@ -5,10 +5,9 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
-import type { UsersRepository } from '@/models/_.js';
+import type { MiMeta, UsersRepository } from '@/models/_.js';
 import { SignupService } from '@/core/SignupService.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
-import { InstanceActorService } from '@/core/InstanceActorService.js';
 import { localUsernameSchema, passwordSchema } from '@/models/User.js';
 import { DI } from '@/di-symbols.js';
 import type { Config } from '@/config.js';
@@ -90,20 +89,21 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		@Inject(DI.config)
 		private config: Config,
 
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		@Inject(DI.usersRepository)
 		private usersRepository: UsersRepository,
 
 		private roleService: RoleService,
 		private userEntityService: UserEntityService,
 		private signupService: SignupService,
-		private instanceActorService: InstanceActorService,
 		private readonly moderationLogService: ModerationLogService,
 	) {
 		super(meta, paramDef, async (ps, _me, token) => {
 			const me = _me ? await this.usersRepository.findOneByOrFail({ id: _me.id }) : null;
-			const realUsers = await this.instanceActorService.realLocalUsersPresent();
 
-			if (!realUsers && me == null && token == null) {
+			if (this.serverSettings.rootUserId == null && me == null && token == null) {
 				// 初回セットアップの場合
 				if (this.config.setupPassword != null) {
 					// 初期パスワードが設定されている場合
@@ -127,7 +127,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				}
 
 				// Anonymous access is only allowed for initial instance setup (this check may be redundant)
-				if (!me && realUsers) {
+				if (!me && this.serverSettings.rootUserId != null) {
 					throw new ApiError(meta.errors.noCredential);
 				}
 			}
diff --git a/packages/backend/src/server/api/endpoints/admin/accounts/delete.ts b/packages/backend/src/server/api/endpoints/admin/accounts/delete.ts
index ece1984cff..d04f52dd64 100644
--- a/packages/backend/src/server/api/endpoints/admin/accounts/delete.ts
+++ b/packages/backend/src/server/api/endpoints/admin/accounts/delete.ts
@@ -42,10 +42,6 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw new Error('user not found');
 			}
 
-			if (user.isRoot) {
-				throw new Error('cannot delete a root account');
-			}
-
 			await this.deleteAccoountService.deleteAccount(user, me);
 		});
 	}
diff --git a/packages/backend/src/server/api/endpoints/admin/avatar-decorations/create.ts b/packages/backend/src/server/api/endpoints/admin/avatar-decorations/create.ts
index 87d80cbe80..0121c302ac 100644
--- a/packages/backend/src/server/api/endpoints/admin/avatar-decorations/create.ts
+++ b/packages/backend/src/server/api/endpoints/admin/avatar-decorations/create.ts
@@ -12,7 +12,7 @@ export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canManageAvatarDecorations',
+	requiredRolePolicy: 'canManageAvatarDecorations',
 	kind: 'write:admin:avatar-decorations',
 
 	res: {
diff --git a/packages/backend/src/server/api/endpoints/admin/avatar-decorations/delete.ts b/packages/backend/src/server/api/endpoints/admin/avatar-decorations/delete.ts
index 3a5673d99d..13660d0b8c 100644
--- a/packages/backend/src/server/api/endpoints/admin/avatar-decorations/delete.ts
+++ b/packages/backend/src/server/api/endpoints/admin/avatar-decorations/delete.ts
@@ -13,7 +13,7 @@ export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canManageAvatarDecorations',
+	requiredRolePolicy: 'canManageAvatarDecorations',
 	kind: 'write:admin:avatar-decorations',
 	errors: {
 	},
diff --git a/packages/backend/src/server/api/endpoints/admin/avatar-decorations/list.ts b/packages/backend/src/server/api/endpoints/admin/avatar-decorations/list.ts
index d785f085ac..d4d9a7235b 100644
--- a/packages/backend/src/server/api/endpoints/admin/avatar-decorations/list.ts
+++ b/packages/backend/src/server/api/endpoints/admin/avatar-decorations/list.ts
@@ -13,7 +13,7 @@ export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canManageAvatarDecorations',
+	requiredRolePolicy: 'canManageAvatarDecorations',
 	kind: 'read:admin:avatar-decorations',
 
 	res: {
diff --git a/packages/backend/src/server/api/endpoints/admin/avatar-decorations/update.ts b/packages/backend/src/server/api/endpoints/admin/avatar-decorations/update.ts
index 34b3b5a11f..22476a6888 100644
--- a/packages/backend/src/server/api/endpoints/admin/avatar-decorations/update.ts
+++ b/packages/backend/src/server/api/endpoints/admin/avatar-decorations/update.ts
@@ -13,7 +13,7 @@ export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canManageAvatarDecorations',
+	requiredRolePolicy: 'canManageAvatarDecorations',
 	kind: 'write:admin:avatar-decorations',
 
 	errors: {
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/add-aliases-bulk.ts b/packages/backend/src/server/api/endpoints/admin/emoji/add-aliases-bulk.ts
index 795b579041..56db393996 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/add-aliases-bulk.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/add-aliases-bulk.ts
@@ -12,7 +12,7 @@ export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canManageCustomEmojis',
+	requiredRolePolicy: 'canManageCustomEmojis',
 	kind: 'write:admin:emoji',
 } as const;
 
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/add.ts b/packages/backend/src/server/api/endpoints/admin/emoji/add.ts
index 1c5316a002..5ef8307df0 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/add.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/add.ts
@@ -16,7 +16,7 @@ export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canManageCustomEmojis',
+	requiredRolePolicy: 'canManageCustomEmojis',
 	kind: 'write:admin:emoji',
 
 	errors: {
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/copy.ts b/packages/backend/src/server/api/endpoints/admin/emoji/copy.ts
index 07ffa0b1c7..cbf78ada3e 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/copy.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/copy.ts
@@ -17,7 +17,7 @@ export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canManageCustomEmojis',
+	requiredRolePolicy: 'canManageCustomEmojis',
 	kind: 'write:admin:emoji',
 
 	errors: {
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/delete-bulk.ts b/packages/backend/src/server/api/endpoints/admin/emoji/delete-bulk.ts
index cec9f700c3..7993edcc07 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/delete-bulk.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/delete-bulk.ts
@@ -11,7 +11,7 @@ export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canManageCustomEmojis',
+	requiredRolePolicy: 'canManageCustomEmojis',
 	kind: 'write:admin:emoji',
 } as const;
 
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/delete.ts b/packages/backend/src/server/api/endpoints/admin/emoji/delete.ts
index 50c45b6ac5..87ed3f5f18 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/delete.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/delete.ts
@@ -11,7 +11,7 @@ export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canManageCustomEmojis',
+	requiredRolePolicy: 'canManageCustomEmojis',
 	kind: 'write:admin:emoji',
 
 	errors: {
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/import-zip.ts b/packages/backend/src/server/api/endpoints/admin/emoji/import-zip.ts
index ee7706f31a..921ecacaf3 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/import-zip.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/import-zip.ts
@@ -13,7 +13,7 @@ import { DI } from '@/di-symbols.js';
 export const meta = {
 	secure: true,
 	requireCredential: true,
-	requireRolePolicy: 'canManageCustomEmojis',
+	requiredRolePolicy: 'canManageCustomEmojis',
 } as const;
 
 export const paramDef = {
@@ -33,7 +33,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private readonly driveFilesRepository: DriveFilesRepository,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			const file = await driveFilesRepository.findOneByOrFail({ id: ps.fileId });
+			const file = await this.driveFilesRepository.findOneByOrFail({ id: ps.fileId });
 			await this.moderationLogService.log(me, 'importCustomEmojis', {
 				fileName: file.name,
 			});
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/list-remote.ts b/packages/backend/src/server/api/endpoints/admin/emoji/list-remote.ts
index 1182918ea2..7982c1f0bd 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/list-remote.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/list-remote.ts
@@ -16,7 +16,7 @@ export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canManageCustomEmojis',
+	requiredRolePolicy: 'canManageCustomEmojis',
 	kind: 'read:admin:emoji',
 
 	res: {
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/list.ts b/packages/backend/src/server/api/endpoints/admin/emoji/list.ts
index f35a6667f4..b1b8e63d2f 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/list.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/list.ts
@@ -16,7 +16,7 @@ export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canManageCustomEmojis',
+	requiredRolePolicy: 'canManageCustomEmojis',
 	kind: 'read:admin:emoji',
 
 	res: {
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/remove-aliases-bulk.ts b/packages/backend/src/server/api/endpoints/admin/emoji/remove-aliases-bulk.ts
index 066eb1c7d9..2d8867b9fd 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/remove-aliases-bulk.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/remove-aliases-bulk.ts
@@ -12,7 +12,7 @@ export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canManageCustomEmojis',
+	requiredRolePolicy: 'canManageCustomEmojis',
 	kind: 'write:admin:emoji',
 } as const;
 
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/set-aliases-bulk.ts b/packages/backend/src/server/api/endpoints/admin/emoji/set-aliases-bulk.ts
index 8980ef0c86..8086af8ed5 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/set-aliases-bulk.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/set-aliases-bulk.ts
@@ -12,7 +12,7 @@ export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canManageCustomEmojis',
+	requiredRolePolicy: 'canManageCustomEmojis',
 	kind: 'write:admin:emoji',
 } as const;
 
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/set-category-bulk.ts b/packages/backend/src/server/api/endpoints/admin/emoji/set-category-bulk.ts
index 2510349210..5d3b39d7da 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/set-category-bulk.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/set-category-bulk.ts
@@ -12,7 +12,7 @@ export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canManageCustomEmojis',
+	requiredRolePolicy: 'canManageCustomEmojis',
 	kind: 'write:admin:emoji',
 } as const;
 
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/set-license-bulk.ts b/packages/backend/src/server/api/endpoints/admin/emoji/set-license-bulk.ts
index a0205ae24a..4b916508a7 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/set-license-bulk.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/set-license-bulk.ts
@@ -12,7 +12,7 @@ export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canManageCustomEmojis',
+	requiredRolePolicy: 'canManageCustomEmojis',
 	kind: 'write:admin:emoji',
 } as const;
 
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/update.ts b/packages/backend/src/server/api/endpoints/admin/emoji/update.ts
index fd6db9c4ab..492122422c 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/update.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/update.ts
@@ -14,7 +14,7 @@ export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canManageCustomEmojis',
+	requiredRolePolicy: 'canManageCustomEmojis',
 	kind: 'write:admin:emoji',
 
 	errors: {
diff --git a/packages/backend/src/server/api/endpoints/admin/gen-vapid-keys.ts b/packages/backend/src/server/api/endpoints/admin/gen-vapid-keys.ts
index 5695866265..85e3cd0477 100644
--- a/packages/backend/src/server/api/endpoints/admin/gen-vapid-keys.ts
+++ b/packages/backend/src/server/api/endpoints/admin/gen-vapid-keys.ts
@@ -26,7 +26,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const keys = await generateVAPIDKeys();
-			
+
+			// TODO add moderation log
+
 			return { public: keys.publicKey, private: keys.privateKey };
 		});
 	}
diff --git a/packages/backend/src/server/api/endpoints/admin/meta.ts b/packages/backend/src/server/api/endpoints/admin/meta.ts
index 436dcf27cb..fe8ca012b2 100644
--- a/packages/backend/src/server/api/endpoints/admin/meta.ts
+++ b/packages/backend/src/server/api/endpoints/admin/meta.ts
@@ -9,6 +9,8 @@ import { MetaService } from '@/core/MetaService.js';
 import type { Config } from '@/config.js';
 import { DI } from '@/di-symbols.js';
 import { DEFAULT_POLICIES } from '@/core/RoleService.js';
+import { instanceUnsignedFetchOptions } from '@/const.js';
+import { SystemAccountService } from '@/core/SystemAccountService.js';
 
 export const meta = {
 	tags: ['meta'],
@@ -264,7 +266,7 @@ export const meta = {
 			},
 			proxyAccountId: {
 				type: 'string',
-				optional: false, nullable: true,
+				optional: false, nullable: false,
 				format: 'id',
 			},
 			email: {
@@ -443,6 +445,10 @@ export const meta = {
 				type: 'string',
 				optional: false, nullable: true,
 			},
+			translationTimeout: {
+				type: 'number',
+				optional: false, nullable: false,
+			},
 			deeplAuthKey: {
 				type: 'string',
 				optional: false, nullable: true,
@@ -459,6 +465,14 @@ export const meta = {
 				type: 'string',
 				optional: false, nullable: true,
 			},
+			libreTranslateURL: {
+				type: 'string',
+				optional: false, nullable: true,
+			},
+			libreTranslateKey: {
+				type: 'string',
+				optional: false, nullable: true,
+			},
 			defaultDarkTheme: {
 				type: 'string',
 				optional: false, nullable: true,
@@ -467,6 +481,10 @@ export const meta = {
 				type: 'string',
 				optional: false, nullable: true,
 			},
+			defaultLike: {
+				type: 'string',
+				optional: false, nullable: false,
+			},
 			description: {
 				type: 'string',
 				optional: false, nullable: true,
@@ -571,6 +589,7 @@ export const meta = {
 			},
 			federation: {
 				type: 'string',
+				enum: ['all', 'specified', 'none'],
 				optional: false, nullable: false,
 			},
 			federationHosts: {
@@ -581,6 +600,19 @@ export const meta = {
 					optional: false, nullable: false,
 				},
 			},
+			hasLegacyAuthFetchSetting: {
+				type: 'boolean',
+				optional: false, nullable: false,
+			},
+			allowUnsignedFetch: {
+				type: 'string',
+				enum: instanceUnsignedFetchOptions,
+				optional: false, nullable: false,
+			},
+			enableProxyAccount: {
+				type: 'boolean',
+				optional: false, nullable: false,
+			},
 		},
 	},
 } as const;
@@ -599,10 +631,13 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private config: Config,
 
 		private metaService: MetaService,
+		private systemAccountService: SystemAccountService,
 	) {
 		super(meta, paramDef, async () => {
 			const instance = await this.metaService.fetch(true);
 
+			const proxy = await this.systemAccountService.fetch('proxy');
+
 			return {
 				maintainerName: instance.maintainerName,
 				maintainerEmail: instance.maintainerEmail,
@@ -652,7 +687,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				defaultLike: instance.defaultLike,
 				enableEmail: instance.enableEmail,
 				enableServiceWorker: instance.enableServiceWorker,
-				translatorAvailable: instance.deeplAuthKey != null,
+				translatorAvailable: instance.deeplAuthKey != null || instance.libreTranslateURL != null || instance.deeplFreeMode && instance.deeplFreeInstance != null,
 				cacheRemoteFiles: instance.cacheRemoteFiles,
 				cacheRemoteSensitiveFiles: instance.cacheRemoteSensitiveFiles,
 				pinnedUsers: instance.pinnedUsers,
@@ -675,7 +710,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				setSensitiveFlagAutomatically: instance.setSensitiveFlagAutomatically,
 				enableSensitiveMediaDetectionForVideos: instance.enableSensitiveMediaDetectionForVideos,
 				enableBotTrending: instance.enableBotTrending,
-				proxyAccountId: instance.proxyAccountId,
+				proxyAccountId: proxy.id,
 				email: instance.email,
 				smtpSecure: instance.smtpSecure,
 				smtpHost: instance.smtpHost,
@@ -696,10 +731,13 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				objectStorageUseProxy: instance.objectStorageUseProxy,
 				objectStorageSetPublicRead: instance.objectStorageSetPublicRead,
 				objectStorageS3ForcePathStyle: instance.objectStorageS3ForcePathStyle,
+				translationTimeout: instance.translationTimeout,
 				deeplAuthKey: instance.deeplAuthKey,
 				deeplIsPro: instance.deeplIsPro,
 				deeplFreeMode: instance.deeplFreeMode,
 				deeplFreeInstance: instance.deeplFreeInstance,
+				libreTranslateURL: instance.libreTranslateURL,
+				libreTranslateKey: instance.libreTranslateKey,
 				enableIpLogging: instance.enableIpLogging,
 				enableActiveEmailValidation: instance.enableActiveEmailValidation,
 				enableVerifymailApi: instance.enableVerifymailApi,
@@ -735,6 +773,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				trustedLinkUrlPatterns: instance.trustedLinkUrlPatterns,
 				federation: instance.federation,
 				federationHosts: instance.federationHosts,
+				hasLegacyAuthFetchSetting: config.checkActivityPubGetSignature != null,
+				allowUnsignedFetch: instance.allowUnsignedFetch,
+				enableProxyAccount: instance.enableProxyAccount,
 			};
 		});
 	}
diff --git a/packages/backend/src/server/api/endpoints/admin/queue/clear.ts b/packages/backend/src/server/api/endpoints/admin/queue/clear.ts
index 3f7df0e63d..81cb4b8119 100644
--- a/packages/backend/src/server/api/endpoints/admin/queue/clear.ts
+++ b/packages/backend/src/server/api/endpoints/admin/queue/clear.ts
@@ -6,7 +6,7 @@
 import { Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { ModerationLogService } from '@/core/ModerationLogService.js';
-import { QueueService } from '@/core/QueueService.js';
+import { QUEUE_TYPES, QueueService } from '@/core/QueueService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -18,8 +18,11 @@ export const meta = {
 
 export const paramDef = {
 	type: 'object',
-	properties: {},
-	required: [],
+	properties: {
+		queue: { type: 'string', enum: QUEUE_TYPES },
+		state: { type: 'string', enum: ['*', 'completed', 'wait', 'active', 'paused', 'prioritized', 'delayed', 'failed'] },
+	},
+	required: ['queue', 'state'],
 } as const;
 
 @Injectable()
@@ -29,7 +32,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private queueService: QueueService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			this.queueService.destroy();
+			this.queueService.queueClear(ps.queue, ps.state);
 
 			this.moderationLogService.log(me, 'clearQueue');
 		});
diff --git a/packages/backend/src/server/api/endpoints/admin/queue/jobs.ts b/packages/backend/src/server/api/endpoints/admin/queue/jobs.ts
new file mode 100644
index 0000000000..aba68376ad
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/admin/queue/jobs.ts
@@ -0,0 +1,38 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
+import { QUEUE_TYPES, QueueService } from '@/core/QueueService.js';
+
+export const meta = {
+	tags: ['admin'],
+
+	requireCredential: true,
+	requireModerator: true,
+	kind: 'read:admin:queue',
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		queue: { type: 'string', enum: QUEUE_TYPES },
+		state: { type: 'array', items: { type: 'string', enum: ['active', 'paused', 'wait', 'delayed', 'completed', 'failed'] } },
+		search: { type: 'string' },
+	},
+	required: ['queue', 'state'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private queueService: QueueService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			return this.queueService.queueGetJobs(ps.queue, ps.state, ps.search);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/admin/queue/promote-jobs.ts b/packages/backend/src/server/api/endpoints/admin/queue/promote-jobs.ts
new file mode 100644
index 0000000000..d22385e261
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/admin/queue/promote-jobs.ts
@@ -0,0 +1,39 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
+import { QUEUE_TYPES, QueueService } from '@/core/QueueService.js';
+
+export const meta = {
+	tags: ['admin'],
+
+	requireCredential: true,
+	requireModerator: true,
+	kind: 'write:admin:queue',
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		queue: { type: 'string', enum: QUEUE_TYPES },
+	},
+	required: ['queue'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private moderationLogService: ModerationLogService,
+		private queueService: QueueService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			this.queueService.queuePromoteJobs(ps.queue);
+
+			this.moderationLogService.log(me, 'promoteQueue');
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/admin/queue/promote.ts b/packages/backend/src/server/api/endpoints/admin/queue/promote.ts
deleted file mode 100644
index 7502d4e1f7..0000000000
--- a/packages/backend/src/server/api/endpoints/admin/queue/promote.ts
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * SPDX-FileCopyrightText: syuilo and misskey-project
- * SPDX-License-Identifier: AGPL-3.0-only
- */
-
-import { Injectable } from '@nestjs/common';
-import { Endpoint } from '@/server/api/endpoint-base.js';
-import { ModerationLogService } from '@/core/ModerationLogService.js';
-import { QueueService } from '@/core/QueueService.js';
-
-export const meta = {
-	tags: ['admin'],
-
-	requireCredential: true,
-	requireModerator: true,
-	kind: 'write:admin:queue',
-} as const;
-
-export const paramDef = {
-	type: 'object',
-	properties: {
-		type: { type: 'string', enum: ['deliver', 'inbox'] },
-	},
-	required: ['type'],
-} as const;
-
-@Injectable()
-export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
-	constructor(
-		private moderationLogService: ModerationLogService,
-		private queueService: QueueService,
-	) {
-		super(meta, paramDef, async (ps, me) => {
-			let delayedQueues;
-
-			switch (ps.type) {
-				case 'deliver':
-					delayedQueues = await this.queueService.deliverQueue.getDelayed();
-					for (let queueIndex = 0; queueIndex < delayedQueues.length; queueIndex++) {
-						const queue = delayedQueues[queueIndex];
-						try {
-							await queue.promote();
-						} catch (e) {
-							if (e instanceof Error) {
-								if (e.message.indexOf('not in a delayed state') !== -1) {
-									throw e;
-								}
-							} else {
-								throw e;
-							}
-						}
-					}
-					break;
-
-				case 'inbox':
-					delayedQueues = await this.queueService.inboxQueue.getDelayed();
-					for (let queueIndex = 0; queueIndex < delayedQueues.length; queueIndex++) {
-						const queue = delayedQueues[queueIndex];
-						try {
-							await queue.promote();
-						} catch (e) {
-							if (e instanceof Error) {
-								if (e.message.indexOf('not in a delayed state') !== -1) {
-									throw e;
-								}
-							} else {
-								throw e;
-							}
-						}
-					}
-					break;
-			}
-
-			this.moderationLogService.log(me, 'promoteQueue');
-		});
-	}
-}
diff --git a/packages/backend/src/server/api/endpoints/admin/queue/queue-stats.ts b/packages/backend/src/server/api/endpoints/admin/queue/queue-stats.ts
new file mode 100644
index 0000000000..10ce48332a
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/admin/queue/queue-stats.ts
@@ -0,0 +1,36 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
+import { QUEUE_TYPES, QueueService } from '@/core/QueueService.js';
+
+export const meta = {
+	tags: ['admin'],
+
+	requireCredential: true,
+	requireModerator: true,
+	kind: 'read:admin:queue',
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		queue: { type: 'string', enum: QUEUE_TYPES },
+	},
+	required: ['queue'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private queueService: QueueService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			return this.queueService.queueGetQueue(ps.queue);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/admin/queue/queues.ts b/packages/backend/src/server/api/endpoints/admin/queue/queues.ts
new file mode 100644
index 0000000000..3a38275f60
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/admin/queue/queues.ts
@@ -0,0 +1,35 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
+import { QUEUE_TYPES, QueueService } from '@/core/QueueService.js';
+
+export const meta = {
+	tags: ['admin'],
+
+	requireCredential: true,
+	requireModerator: true,
+	kind: 'read:admin:queue',
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+	},
+	required: [],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private queueService: QueueService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			return this.queueService.queueGetQueues();
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/admin/queue/remove-job.ts b/packages/backend/src/server/api/endpoints/admin/queue/remove-job.ts
new file mode 100644
index 0000000000..2c73f689d0
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/admin/queue/remove-job.ts
@@ -0,0 +1,38 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
+import { QUEUE_TYPES, QueueService } from '@/core/QueueService.js';
+
+export const meta = {
+	tags: ['admin'],
+
+	requireCredential: true,
+	requireModerator: true,
+	kind: 'write:admin:queue',
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		queue: { type: 'string', enum: QUEUE_TYPES },
+		jobId: { type: 'string' },
+	},
+	required: ['queue', 'jobId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private moderationLogService: ModerationLogService,
+		private queueService: QueueService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			this.queueService.queueRemoveJob(ps.queue, ps.jobId);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/admin/queue/retry-job.ts b/packages/backend/src/server/api/endpoints/admin/queue/retry-job.ts
new file mode 100644
index 0000000000..b2603128f8
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/admin/queue/retry-job.ts
@@ -0,0 +1,38 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
+import { QUEUE_TYPES, QueueService } from '@/core/QueueService.js';
+
+export const meta = {
+	tags: ['admin'],
+
+	requireCredential: true,
+	requireModerator: true,
+	kind: 'write:admin:queue',
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		queue: { type: 'string', enum: QUEUE_TYPES },
+		jobId: { type: 'string' },
+	},
+	required: ['queue', 'jobId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private moderationLogService: ModerationLogService,
+		private queueService: QueueService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			this.queueService.queueRetryJob(ps.queue, ps.jobId);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/admin/queue/show-job.ts b/packages/backend/src/server/api/endpoints/admin/queue/show-job.ts
new file mode 100644
index 0000000000..63747b5540
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/admin/queue/show-job.ts
@@ -0,0 +1,38 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
+import { QUEUE_TYPES, QueueService } from '@/core/QueueService.js';
+
+export const meta = {
+	tags: ['admin'],
+
+	requireCredential: true,
+	requireModerator: true,
+	kind: 'read:admin:queue',
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		queue: { type: 'string', enum: QUEUE_TYPES },
+		jobId: { type: 'string' },
+	},
+	required: ['queue', 'jobId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private moderationLogService: ModerationLogService,
+		private queueService: QueueService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			return this.queueService.queueGetJob(ps.queue, ps.jobId);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/admin/reset-password.ts b/packages/backend/src/server/api/endpoints/admin/reset-password.ts
index e4bb545f5d..57b7170052 100644
--- a/packages/backend/src/server/api/endpoints/admin/reset-password.ts
+++ b/packages/backend/src/server/api/endpoints/admin/reset-password.ts
@@ -4,10 +4,9 @@
  */
 
 import { Inject, Injectable } from '@nestjs/common';
-//import bcrypt from 'bcryptjs';
 import * as argon2 from 'argon2';
 import { Endpoint } from '@/server/api/endpoint-base.js';
-import type { UsersRepository, UserProfilesRepository } from '@/models/_.js';
+import type { UsersRepository, UserProfilesRepository, MiMeta } from '@/models/_.js';
 import { DI } from '@/di-symbols.js';
 import { secureRndstr } from '@/misc/secure-rndstr.js';
 import { ModerationLogService } from '@/core/ModerationLogService.js';
@@ -45,6 +44,9 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		@Inject(DI.usersRepository)
 		private usersRepository: UsersRepository,
 
@@ -60,7 +62,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw new Error('user not found');
 			}
 
-			if (user.isRoot) {
+			if (this.serverSettings.rootUserId === user.id) {
 				throw new Error('cannot reset password of root');
 			}
 
diff --git a/packages/backend/src/server/api/endpoints/admin/roles/create.ts b/packages/backend/src/server/api/endpoints/admin/roles/create.ts
index e0c02f7a5d..f92f7ebaeb 100644
--- a/packages/backend/src/server/api/endpoints/admin/roles/create.ts
+++ b/packages/backend/src/server/api/endpoints/admin/roles/create.ts
@@ -36,6 +36,7 @@ export const paramDef = {
 		isAdministrator: { type: 'boolean' },
 		isExplorable: { type: 'boolean', default: false }, // optional for backward compatibility
 		asBadge: { type: 'boolean' },
+		preserveAssignmentOnMoveAccount: { type: 'boolean' },
 		canEditMembersByModerator: { type: 'boolean' },
 		displayOrder: { type: 'number' },
 		policies: {
diff --git a/packages/backend/src/server/api/endpoints/admin/roles/update.ts b/packages/backend/src/server/api/endpoints/admin/roles/update.ts
index 465ad7aaaf..175adcb63f 100644
--- a/packages/backend/src/server/api/endpoints/admin/roles/update.ts
+++ b/packages/backend/src/server/api/endpoints/admin/roles/update.ts
@@ -41,6 +41,7 @@ export const paramDef = {
 		isAdministrator: { type: 'boolean' },
 		isExplorable: { type: 'boolean' },
 		asBadge: { type: 'boolean' },
+		preserveAssignmentOnMoveAccount: { type: 'boolean' },
 		canEditMembersByModerator: { type: 'boolean' },
 		displayOrder: { type: 'number' },
 		policies: {
@@ -78,6 +79,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				isAdministrator: ps.isAdministrator,
 				isExplorable: ps.isExplorable,
 				asBadge: ps.asBadge,
+				preserveAssignmentOnMoveAccount: ps.preserveAssignmentOnMoveAccount,
 				canEditMembersByModerator: ps.canEditMembersByModerator,
 				displayOrder: ps.displayOrder,
 				policies: ps.policies,
diff --git a/packages/backend/src/server/api/endpoints/admin/show-user.ts b/packages/backend/src/server/api/endpoints/admin/show-user.ts
index 669bffe2dc..1579719246 100644
--- a/packages/backend/src/server/api/endpoints/admin/show-user.ts
+++ b/packages/backend/src/server/api/endpoints/admin/show-user.ts
@@ -12,6 +12,7 @@ import { RoleEntityService } from '@/core/entities/RoleEntityService.js';
 import { IdService } from '@/core/IdService.js';
 import { notificationRecieveConfig } from '@/models/json-schema/user.js';
 import { isSystemAccount } from '@/misc/is-system-account.js';
+import { CacheService } from '@/core/CacheService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -111,6 +112,7 @@ export const meta = {
 					receiveFollowRequest: { optional: true, ...notificationRecieveConfig },
 					followRequestAccepted: { optional: true, ...notificationRecieveConfig },
 					roleAssigned: { optional: true, ...notificationRecieveConfig },
+					chatRoomInvitationReceived: { optional: true, ...notificationRecieveConfig },
 					achievementEarned: { optional: true, ...notificationRecieveConfig },
 					app: { optional: true, ...notificationRecieveConfig },
 					test: { optional: true, ...notificationRecieveConfig },
@@ -185,6 +187,36 @@ export const meta = {
 					},
 				},
 			},
+			followStats: {
+				type: 'object',
+				optional: false, nullable: false,
+				properties: {
+					totalFollowing: {
+						type: 'number',
+						optional: false, nullable: false,
+					},
+					totalFollowers: {
+						type: 'number',
+						optional: false, nullable: false,
+					},
+					localFollowing: {
+						type: 'number',
+						optional: false, nullable: false,
+					},
+					localFollowers: {
+						type: 'number',
+						optional: false, nullable: false,
+					},
+					remoteFollowing: {
+						type: 'number',
+						optional: false, nullable: false,
+					},
+					remoteFollowers: {
+						type: 'number',
+						optional: false, nullable: false,
+					},
+				},
+			},
 		},
 	},
 } as const;
@@ -212,6 +244,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private roleService: RoleService,
 		private roleEntityService: RoleEntityService,
 		private idService: IdService,
+		private readonly cacheService: CacheService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const [user, profile] = await Promise.all([
@@ -236,6 +269,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			const roleAssigns = await this.roleService.getUserAssigns(user.id);
 			const roles = await this.roleService.getUserRoles(user.id);
 
+			const followStats = await this.cacheService.getFollowStats(user.id);
+
 			return {
 				email: profile.email,
 				emailVerified: profile.emailVerified,
@@ -268,6 +303,11 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 					expiresAt: a.expiresAt ? a.expiresAt.toISOString() : null,
 					roleId: a.roleId,
 				})),
+				followStats: {
+					...followStats,
+					totalFollowers: Math.max(user.followersCount, followStats.localFollowers + followStats.remoteFollowers),
+					totalFollowing: Math.max(user.followingCount, followStats.localFollowing + followStats.remoteFollowing),
+				},
 			};
 		});
 	}
diff --git a/packages/backend/src/server/api/endpoints/admin/update-meta.ts b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
index b3733d3d39..7c3d485a0f 100644
--- a/packages/backend/src/server/api/endpoints/admin/update-meta.ts
+++ b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
@@ -8,6 +8,7 @@ import type { MiMeta } from '@/models/Meta.js';
 import { ModerationLogService } from '@/core/ModerationLogService.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { MetaService } from '@/core/MetaService.js';
+import { instanceUnsignedFetchOptions } from '@/const.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -68,7 +69,7 @@ export const paramDef = {
 		description: { type: 'string', nullable: true },
 		defaultLightTheme: { type: 'string', nullable: true },
 		defaultDarkTheme: { type: 'string', nullable: true },
-		defaultLike: { type: 'string', nullable: true },
+		defaultLike: { type: 'string' },
 		cacheRemoteFiles: { type: 'boolean' },
 		cacheRemoteSensitiveFiles: { type: 'boolean' },
 		emailRequiredForSignup: { type: 'boolean' },
@@ -95,7 +96,6 @@ export const paramDef = {
 		setSensitiveFlagAutomatically: { type: 'boolean' },
 		enableSensitiveMediaDetectionForVideos: { type: 'boolean' },
 		enableBotTrending: { type: 'boolean' },
-		proxyAccountId: { type: 'string', format: 'misskey:id', nullable: true },
 		maintainerName: { type: 'string', nullable: true },
 		maintainerEmail: { type: 'string', nullable: true },
 		langs: {
@@ -103,10 +103,13 @@ export const paramDef = {
 				type: 'string',
 			},
 		},
+		translationTimeout: { type: 'number' },
 		deeplAuthKey: { type: 'string', nullable: true },
 		deeplIsPro: { type: 'boolean' },
 		deeplFreeMode: { type: 'boolean' },
 		deeplFreeInstance: { type: 'string', nullable: true },
+		libreTranslateURL: { type: 'string', nullable: true },
+		libreTranslateKey: { type: 'string', nullable: true },
 		enableEmail: { type: 'boolean' },
 		email: { type: 'string', nullable: true },
 		smtpSecure: { type: 'boolean' },
@@ -127,7 +130,7 @@ export const paramDef = {
 		useObjectStorage: { type: 'boolean' },
 		objectStorageBaseUrl: { type: 'string', nullable: true },
 		objectStorageBucket: { type: 'string', nullable: true },
-		objectStoragePrefix: { type: 'string', nullable: true },
+		objectStoragePrefix: { type: 'string', pattern: /^[a-zA-Z0-9-._\/]*$/.source, nullable: true },
 		objectStorageEndpoint: { type: 'string', nullable: true },
 		objectStorageRegion: { type: 'string', nullable: true },
 		objectStoragePort: { type: 'integer', nullable: true },
@@ -203,6 +206,15 @@ export const paramDef = {
 				type: 'string',
 			},
 		},
+		allowUnsignedFetch: {
+			type: 'string',
+			enum: instanceUnsignedFetchOptions,
+			nullable: false,
+		},
+		enableProxyAccount: {
+			type: 'boolean',
+			nullable: false,
+		},
 	},
 	required: [],
 } as const;
@@ -397,14 +409,14 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				set.turnstileSecretKey = ps.turnstileSecretKey;
 			}
 
-			if (ps.enableFC !== undefined) {
-				set.enableFC = ps.enableFC;
-			}
-
 			if (ps.enableTestcaptcha !== undefined) {
 				set.enableTestcaptcha = ps.enableTestcaptcha;
 			}
 
+			if (ps.enableFC !== undefined) {
+				set.enableFC = ps.enableFC;
+			}
+
 			if (ps.fcSiteKey !== undefined) {
 				set.fcSiteKey = ps.fcSiteKey;
 			}
@@ -417,10 +429,6 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				set.enableBotTrending = ps.enableBotTrending;
 			}
 
-			if (ps.proxyAccountId !== undefined) {
-				set.proxyAccountId = ps.proxyAccountId;
-			}
-
 			if (ps.maintainerName !== undefined) {
 				set.maintainerName = ps.maintainerName;
 			}
@@ -553,6 +561,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				set.objectStorageS3ForcePathStyle = ps.objectStorageS3ForcePathStyle;
 			}
 
+			if (ps.translationTimeout !== undefined) {
+				set.translationTimeout = ps.translationTimeout;
+			}
+
 			if (ps.deeplAuthKey !== undefined) {
 				if (ps.deeplAuthKey === '') {
 					set.deeplAuthKey = null;
@@ -577,6 +589,22 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				}
 			}
 
+			if (ps.libreTranslateURL !== undefined) {
+				if (ps.libreTranslateURL === '') {
+					set.libreTranslateURL = null;
+				} else {
+					set.libreTranslateURL = ps.libreTranslateURL;
+				}
+			}
+
+			if (ps.libreTranslateKey !== undefined) {
+				if (ps.libreTranslateKey === '') {
+					set.libreTranslateKey = null;
+				} else {
+					set.libreTranslateKey = ps.libreTranslateKey;
+				}
+			}
+
 			if (ps.enableIpLogging !== undefined) {
 				set.enableIpLogging = ps.enableIpLogging;
 			}
@@ -735,6 +763,14 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				set.federationHosts = ps.federationHosts.filter(Boolean).map(x => x.toLowerCase());
 			}
 
+			if (ps.allowUnsignedFetch !== undefined) {
+				set.allowUnsignedFetch = ps.allowUnsignedFetch;
+			}
+
+			if (ps.enableProxyAccount !== undefined) {
+				set.enableProxyAccount = ps.enableProxyAccount;
+			}
+
 			const before = await this.metaService.fetch(true);
 
 			await this.metaService.update(set);
diff --git a/packages/backend/src/server/api/endpoints/admin/update-proxy-account.ts b/packages/backend/src/server/api/endpoints/admin/update-proxy-account.ts
new file mode 100644
index 0000000000..6c9612c71a
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/admin/update-proxy-account.ts
@@ -0,0 +1,62 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import {
+	descriptionSchema,
+} from '@/models/User.js';
+import { UserEntityService } from '@/core/entities/UserEntityService.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
+import { SystemAccountService } from '@/core/SystemAccountService.js';
+
+export const meta = {
+	tags: ['admin'],
+
+	requireCredential: true,
+	requireModerator: true,
+	kind: 'write:admin:account',
+
+	res: {
+		type: 'object',
+		nullable: false, optional: false,
+		ref: 'UserDetailed',
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		description: { ...descriptionSchema, nullable: true },
+	},
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private userEntityService: UserEntityService,
+		private moderationLogService: ModerationLogService,
+		private systemAccountService: SystemAccountService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			const proxy = await this.systemAccountService.updateCorrespondingUserProfile('proxy', {
+				description: ps.description,
+			});
+
+			const updated = await this.userEntityService.pack(proxy.id, proxy, {
+				schema: 'MeDetailed',
+			});
+
+			if (ps.description !== undefined) {
+				this.moderationLogService.log(me, 'updateProxyAccountDescription', {
+					before: null, //TODO
+					after: ps.description,
+				});
+			}
+
+			return updated;
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/antennas/create.ts b/packages/backend/src/server/api/endpoints/antennas/create.ts
index 9a6caa3317..55d686e390 100644
--- a/packages/backend/src/server/api/endpoints/antennas/create.ts
+++ b/packages/backend/src/server/api/endpoints/antennas/create.ts
@@ -79,6 +79,7 @@ export const paramDef = {
 		excludeBots: { type: 'boolean' },
 		withReplies: { type: 'boolean' },
 		withFile: { type: 'boolean' },
+		excludeNotesInSensitiveChannel: { type: 'boolean' },
 	},
 	required: ['name', 'src', 'keywords', 'excludeKeywords', 'users', 'caseSensitive', 'withReplies', 'withFile'],
 } as const;
@@ -139,6 +140,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				excludeBots: ps.excludeBots,
 				withReplies: ps.withReplies,
 				withFile: ps.withFile,
+				excludeNotesInSensitiveChannel: ps.excludeNotesInSensitiveChannel,
 			});
 
 			this.globalEventService.publishInternalEvent('antennaCreated', antenna);
diff --git a/packages/backend/src/server/api/endpoints/antennas/notes.ts b/packages/backend/src/server/api/endpoints/antennas/notes.ts
index be4cf1e0ca..b90ba6aa0d 100644
--- a/packages/backend/src/server/api/endpoints/antennas/notes.ts
+++ b/packages/backend/src/server/api/endpoints/antennas/notes.ts
@@ -8,7 +8,6 @@ import * as Redis from 'ioredis';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import type { NotesRepository, AntennasRepository } from '@/models/_.js';
 import { QueryService } from '@/core/QueryService.js';
-import { NoteReadService } from '@/core/NoteReadService.js';
 import { DI } from '@/di-symbols.js';
 import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
 import { IdService } from '@/core/IdService.js';
@@ -65,9 +64,6 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
-		@Inject(DI.redisForTimelines)
-		private redisForTimelines: Redis.Redis,
-
 		@Inject(DI.notesRepository)
 		private notesRepository: NotesRepository,
 
@@ -77,7 +73,6 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private idService: IdService,
 		private noteEntityService: NoteEntityService,
 		private queryService: QueryService,
-		private noteReadService: NoteReadService,
 		private fanoutTimelineService: FanoutTimelineService,
 		private globalEventService: GlobalEventService,
 	) {
@@ -119,9 +114,13 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				.leftJoinAndSelect('reply.user', 'replyUser')
 				.leftJoinAndSelect('renote.user', 'renoteUser');
 
+			// NOTE: センシティブ除外の設定はこのエンドポイントでは無視する。
+			// https://github.com/misskey-dev/misskey/pull/15346#discussion_r1929950255
+
+			this.queryService.generateBlockedHostQueryForNote(query);
 			this.queryService.generateVisibilityQuery(query, me);
-			this.queryService.generateMutedUserQuery(query, me);
-			this.queryService.generateBlockedUserQuery(query, me);
+			this.queryService.generateMutedUserQueryForNotes(query, me);
+			this.queryService.generateBlockedUserQueryForNotes(query, me);
 
 			const notes = await query.getMany();
 			if (sinceId != null && untilId == null) {
@@ -130,8 +129,6 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				notes.sort((a, b) => a.id > b.id ? -1 : 1);
 			}
 
-			this.noteReadService.read(me.id, notes);
-
 			return await this.noteEntityService.packMany(notes, me);
 		});
 	}
diff --git a/packages/backend/src/server/api/endpoints/antennas/update.ts b/packages/backend/src/server/api/endpoints/antennas/update.ts
index 919a4cb3f5..3f2513bf75 100644
--- a/packages/backend/src/server/api/endpoints/antennas/update.ts
+++ b/packages/backend/src/server/api/endpoints/antennas/update.ts
@@ -78,6 +78,7 @@ export const paramDef = {
 		excludeBots: { type: 'boolean' },
 		withReplies: { type: 'boolean' },
 		withFile: { type: 'boolean' },
+		excludeNotesInSensitiveChannel: { type: 'boolean' },
 	},
 	required: ['antennaId'],
 } as const;
@@ -135,6 +136,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				excludeBots: ps.excludeBots,
 				withReplies: ps.withReplies,
 				withFile: ps.withFile,
+				excludeNotesInSensitiveChannel: ps.excludeNotesInSensitiveChannel,
 				isActive: true,
 				lastUsedAt: new Date(),
 			});
diff --git a/packages/backend/src/server/api/endpoints/ap/show.ts b/packages/backend/src/server/api/endpoints/ap/show.ts
index 22bec8ef95..d69850515c 100644
--- a/packages/backend/src/server/api/endpoints/ap/show.ts
+++ b/packages/backend/src/server/api/endpoints/ap/show.ts
@@ -7,7 +7,7 @@ import { Inject, Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import type { MiNote } from '@/models/Note.js';
 import type { MiLocalUser, MiUser } from '@/models/User.js';
-import { isActor, isPost, getApId, getNullableApId } from '@/core/activitypub/type.js';
+import { isActor, isPost, getApId } from '@/core/activitypub/type.js';
 import type { SchemaType } from '@/misc/json-schema.js';
 import { ApResolverService } from '@/core/activitypub/ApResolverService.js';
 import { ApDbResolverService } from '@/core/activitypub/ApDbResolverService.js';
@@ -18,7 +18,7 @@ import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
 import { UtilityService } from '@/core/UtilityService.js';
 import { bindThis } from '@/decorators.js';
 import { ApRequestService } from '@/core/activitypub/ApRequestService.js';
-import { InstanceActorService } from '@/core/InstanceActorService.js';
+import { SystemAccountService } from '@/core/SystemAccountService.js';
 import { ApiError } from '../../error.js';
 import { IdentifiableError } from '@/misc/identifiable-error.js';
 
@@ -30,7 +30,8 @@ export const meta = {
 
 	// Up to 30 calls, then 1 per 1/2 second
 	limit: {
-		max: 30,
+		type: 'bucket',
+		size: 30,
 		dripRate: 500,
 	},
 
@@ -55,11 +56,6 @@ export const meta = {
 			code: 'RESPONSE_INVALID',
 			id: '70193c39-54f3-4813-82f0-70a680f7495b',
 		},
-		responseInvalidIdHostNotMatch: {
-			message: 'Requested URI and response URI host does not match.',
-			code: 'RESPONSE_INVALID_ID_HOST_NOT_MATCH',
-			id: 'a2c9c61a-cb72-43ab-a964-3ca5fddb410a',
-		},
 		noSuchObject: {
 			message: 'No such object.',
 			code: 'NO_SUCH_OBJECT',
@@ -123,7 +119,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private apPersonService: ApPersonService,
 		private apNoteService: ApNoteService,
 		private readonly apRequestService: ApRequestService,
-		private readonly instanceActorService: InstanceActorService,
+		private readonly systemAccountService: SystemAccountService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const object = await this.fetchAny(ps.uri, me);
@@ -144,7 +140,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			throw new ApiError(meta.errors.federationNotAllowed);
 		}
 
-		let local = await this.mergePack(me, ...await Promise.all([
+		const local = await this.mergePack(me, ...await Promise.all([
 			this.apDbResolverService.getUserFromApId(uri),
 			this.apDbResolverService.getNoteFromApId(uri),
 		]));
@@ -153,7 +149,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		// No local object found with that uri.
 		// Before we fetch, resolve the URI in case it has a cross-origin redirect or anything like that.
 		// Resolver.resolve() uses strict verification, which is overly paranoid for a user-provided lookup.
-		uri = await this.resolveCanonicalUri(uri); // eslint-disable-line no-param-reassign
+		uri = await this.resolveCanonicalUri(uri);
 		if (!this.utilityService.isFederationAllowedUri(uri)) {
 			throw new ApiError(meta.errors.federationNotAllowed);
 		}
@@ -177,10 +173,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 					case '09d79f9e-64f1-4316-9cfa-e75c4d091574':
 						throw new ApiError(meta.errors.federationNotAllowed);
 					case '72180409-793c-4973-868e-5a118eb5519b':
-					case 'ad2dc287-75c1-44c4-839d-3d2e64576675':
 						throw new ApiError(meta.errors.responseInvalid);
-					case 'fd93c2fa-69a8-440f-880b-bf178e0ec877':
-						throw new ApiError(meta.errors.responseInvalidIdHostNotMatch);
 
 					// resolveLocal
 					case '02b40cd0-fa92-4b0c-acc9-fb2ada952ab8':
@@ -196,25 +189,13 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			throw new ApiError(meta.errors.requestFailed);
 		});
 
-		if (object.id == null) {
-			throw new ApiError(meta.errors.responseInvalid);
-		}
-
-		// /@user のような正規id以外で取得できるURIが指定されていた場合、ここで初めて正規URIが確定する
-		// これはDBに存在する可能性があるため再度DB検索
-		if (uri !== object.id) {
-			local = await this.mergePack(me, ...await Promise.all([
-				this.apDbResolverService.getUserFromApId(object.id),
-				this.apDbResolverService.getNoteFromApId(object.id),
-			]));
-			if (local != null) return local;
-		}
-
-		// 同一ユーザーの情報を再度処理するので、使用済みのresolverを再利用してはいけない
+		// Object is already validated to have a valid id (URI).
+		// We can pass it through with the same resolver and sentFrom to avoid a duplicate fetch.
+		// The resolve* methods automatically check for locally cached copies.
 		return await this.mergePack(
 			me,
-			isActor(object) ? await this.apPersonService.createPerson(getApId(object)) : null,
-			isPost(object) ? await this.apNoteService.createNote(getApId(object), undefined, undefined, true) : null,
+			isActor(object) ? await this.apPersonService.resolvePerson(object, resolver, uri) : null,
+			isPost(object) ? await this.apNoteService.resolveNote(object, { resolver, sentFrom: uri }) : null,
 		);
 	}
 
@@ -245,8 +226,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 	 * Resolves an arbitrary URI to its canonical, post-redirect form.
 	 */
 	private async resolveCanonicalUri(uri: string): Promise<string> {
-		const user = await this.instanceActorService.getInstanceActor();
+		const user = await this.systemAccountService.getInstanceActor();
 		const res = await this.apRequestService.signedGet(uri, user, true);
-		return getNullableApId(res) ?? uri;
+		return getApId(res);
 	}
 }
diff --git a/packages/backend/src/server/api/endpoints/app/current.ts b/packages/backend/src/server/api/endpoints/app/current.ts
new file mode 100644
index 0000000000..39b5ef347c
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/app/current.ts
@@ -0,0 +1,73 @@
+/*
+ * SPDX-FileCopyrightText: hazelnoot and other Sharkey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import type { AppsRepository } from '@/models/_.js';
+import { AppEntityService } from '@/core/entities/AppEntityService.js';
+import { DI } from '@/di-symbols.js';
+import { ApiError } from '../../error.js';
+
+export const meta = {
+	tags: ['app'],
+
+	errors: {
+		credentialRequired: {
+			message: 'Credential required.',
+			code: 'CREDENTIAL_REQUIRED',
+			id: '1384574d-a912-4b81-8601-c7b1c4085df1',
+			httpStatusCode: 401,
+		},
+		noAppLogin: {
+			message: 'Not logged in with an app.',
+			code: 'NO_APP_LOGIN',
+			id: '339a4ad2-48c3-47fc-bd9d-2408f05120f8',
+		},
+	},
+
+	res: {
+		type: 'object',
+		optional: false, nullable: false,
+		ref: 'App',
+	},
+
+	// 10 calls per 5 seconds
+	limit: {
+		duration: 1000 * 5,
+		max: 10,
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {},
+	required: [],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		@Inject(DI.appsRepository)
+		private appsRepository: AppsRepository,
+
+		private appEntityService: AppEntityService,
+	) {
+		super(meta, paramDef, async (_, user, token) => {
+			if (!user) {
+				throw new ApiError(meta.errors.credentialRequired);
+			}
+			if (!token || !token.appId) {
+				throw new ApiError(meta.errors.noAppLogin);
+			}
+
+			const app = token.app ?? await this.appsRepository.findOneByOrFail({ id: token.appId });
+
+			return await this.appEntityService.pack(app, user, {
+				detail: true,
+				includeSecret: false,
+			});
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/channels/timeline.ts b/packages/backend/src/server/api/endpoints/channels/timeline.ts
index 0bd01d712c..6336f43e9f 100644
--- a/packages/backend/src/server/api/endpoints/channels/timeline.ts
+++ b/packages/backend/src/server/api/endpoints/channels/timeline.ts
@@ -137,9 +137,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			.leftJoinAndSelect('renote.user', 'renoteUser')
 			.leftJoinAndSelect('note.channel', 'channel');
 
+		this.queryService.generateBlockedHostQueryForNote(query);
 		if (me) {
-			this.queryService.generateMutedUserQuery(query, me);
-			this.queryService.generateBlockedUserQuery(query, me);
+			this.queryService.generateMutedUserQueryForNotes(query, me);
+			this.queryService.generateBlockedUserQueryForNotes(query, me);
 		}
 
 		if (ps.withRenotes === false) {
diff --git a/packages/backend/src/server/api/endpoints/chat/history.ts b/packages/backend/src/server/api/endpoints/chat/history.ts
new file mode 100644
index 0000000000..fdd9055106
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/history.ts
@@ -0,0 +1,75 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'read:chat',
+
+	res: {
+		type: 'array',
+		optional: false, nullable: false,
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+			ref: 'ChatMessage',
+		},
+	},
+
+	errors: {
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
+		room: { type: 'boolean', default: false },
+	},
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatEntityService: ChatEntityService,
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'read');
+
+			const history = ps.room ? await this.chatService.roomHistory(me.id, ps.limit) : await this.chatService.userHistory(me.id, ps.limit);
+
+			const packedMessages = await this.chatEntityService.packMessagesDetailed(history, me);
+
+			if (ps.room) {
+				const roomIds = history.map(m => m.toRoomId!);
+				const readStateMap = await this.chatService.getRoomReadStateMap(me.id, roomIds);
+
+				for (const message of packedMessages) {
+					message.isRead = readStateMap[message.toRoomId!] ?? false;
+				}
+			} else {
+				const otherIds = history.map(m => m.fromUserId === me.id ? m.toUserId! : m.fromUserId!);
+				const readStateMap = await this.chatService.getUserReadStateMap(me.id, otherIds);
+
+				for (const message of packedMessages) {
+					const otherId = message.fromUserId === me.id ? message.toUserId! : message.fromUserId!;
+					message.isRead = readStateMap[otherId] ?? false;
+				}
+			}
+
+			return packedMessages;
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/messages/create-to-room.ts b/packages/backend/src/server/api/endpoints/chat/messages/create-to-room.ts
new file mode 100644
index 0000000000..ad2b82e219
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/messages/create-to-room.ts
@@ -0,0 +1,106 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import ms from 'ms';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { GetterService } from '@/server/api/GetterService.js';
+import { DI } from '@/di-symbols.js';
+import { ApiError } from '@/server/api/error.js';
+import { ChatService } from '@/core/ChatService.js';
+import type { DriveFilesRepository, MiUser } from '@/models/_.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	prohibitMoved: true,
+
+	kind: 'write:chat',
+
+	limit: {
+		duration: ms('1hour'),
+		max: 500,
+	},
+
+	res: {
+		type: 'object',
+		optional: false, nullable: false,
+		ref: 'ChatMessageLiteForRoom',
+	},
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: '8098520d-2da5-4e8f-8ee1-df78b55a4ec6',
+		},
+
+		noSuchFile: {
+			message: 'No such file.',
+			code: 'NO_SUCH_FILE',
+			id: 'b6accbd3-1d7b-4d9f-bdb7-eb185bac06db',
+		},
+
+		contentRequired: {
+			message: 'Content required. You need to set text or fileId.',
+			code: 'CONTENT_REQUIRED',
+			id: '340517b7-6d04-42c0-bac1-37ee804e3594',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		text: { type: 'string', nullable: true, maxLength: 2000 },
+		fileId: { type: 'string', format: 'misskey:id' },
+		toRoomId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['toRoomId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		@Inject(DI.driveFilesRepository)
+		private driveFilesRepository: DriveFilesRepository,
+
+		private getterService: GetterService,
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'write');
+
+			const room = await this.chatService.findRoomById(ps.toRoomId);
+			if (room == null) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+
+			let file = null;
+			if (ps.fileId != null) {
+				file = await this.driveFilesRepository.findOneBy({
+					id: ps.fileId,
+					userId: me.id,
+				});
+
+				if (file == null) {
+					throw new ApiError(meta.errors.noSuchFile);
+				}
+			}
+
+			// テキストが無いかつ添付ファイルも無かったらエラー
+			if (ps.text == null && file == null) {
+				throw new ApiError(meta.errors.contentRequired);
+			}
+
+			return await this.chatService.createMessageToRoom(me, room, {
+				text: ps.text,
+				file: file,
+			});
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/messages/create-to-user.ts b/packages/backend/src/server/api/endpoints/chat/messages/create-to-user.ts
new file mode 100644
index 0000000000..fa34a7d558
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/messages/create-to-user.ts
@@ -0,0 +1,123 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import ms from 'ms';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { GetterService } from '@/server/api/GetterService.js';
+import { DI } from '@/di-symbols.js';
+import { ApiError } from '@/server/api/error.js';
+import { ChatService } from '@/core/ChatService.js';
+import type { DriveFilesRepository, MiUser } from '@/models/_.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	prohibitMoved: true,
+
+	kind: 'write:chat',
+
+	limit: {
+		duration: ms('1hour'),
+		max: 500,
+	},
+
+	res: {
+		type: 'object',
+		optional: false, nullable: false,
+		ref: 'ChatMessageLiteFor1on1',
+	},
+
+	errors: {
+		recipientIsYourself: {
+			message: 'You can not send a message to yourself.',
+			code: 'RECIPIENT_IS_YOURSELF',
+			id: '17e2ba79-e22a-4cbc-bf91-d327643f4a7e',
+		},
+
+		noSuchUser: {
+			message: 'No such user.',
+			code: 'NO_SUCH_USER',
+			id: '11795c64-40ea-4198-b06e-3c873ed9039d',
+		},
+
+		noSuchFile: {
+			message: 'No such file.',
+			code: 'NO_SUCH_FILE',
+			id: '4372b8e2-185d-4146-8749-2f68864a3e5f',
+		},
+
+		contentRequired: {
+			message: 'Content required. You need to set text or fileId.',
+			code: 'CONTENT_REQUIRED',
+			id: '25587321-b0e6-449c-9239-f8925092942c',
+		},
+
+		youHaveBeenBlocked: {
+			message: 'You cannot send a message because you have been blocked by this user.',
+			code: 'YOU_HAVE_BEEN_BLOCKED',
+			id: 'c15a5199-7422-4968-941a-2a462c478f7d',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		text: { type: 'string', nullable: true, maxLength: 2000 },
+		fileId: { type: 'string', format: 'misskey:id' },
+		toUserId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['toUserId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		@Inject(DI.driveFilesRepository)
+		private driveFilesRepository: DriveFilesRepository,
+
+		private getterService: GetterService,
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'write');
+
+			let file = null;
+			if (ps.fileId != null) {
+				file = await this.driveFilesRepository.findOneBy({
+					id: ps.fileId,
+					userId: me.id,
+				});
+
+				if (file == null) {
+					throw new ApiError(meta.errors.noSuchFile);
+				}
+			}
+
+			// テキストが無いかつ添付ファイルも無かったらエラー
+			if (ps.text == null && file == null) {
+				throw new ApiError(meta.errors.contentRequired);
+			}
+
+			// Myself
+			if (ps.toUserId === me.id) {
+				throw new ApiError(meta.errors.recipientIsYourself);
+			}
+
+			const toUser = await this.getterService.getUser(ps.toUserId).catch(err => {
+				if (err.id === '15348ddd-432d-49c2-8a5a-8069753becff') throw new ApiError(meta.errors.noSuchUser);
+				throw err;
+			});
+
+			return await this.chatService.createMessageToUser(me, toUser, {
+				text: ps.text,
+				file: file,
+			});
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/messages/delete.ts b/packages/backend/src/server/api/endpoints/chat/messages/delete.ts
new file mode 100644
index 0000000000..52a054303b
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/messages/delete.ts
@@ -0,0 +1,51 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'write:chat',
+
+	errors: {
+		noSuchMessage: {
+			message: 'No such message.',
+			code: 'NO_SUCH_MESSAGE',
+			id: '36b67f0e-66a6-414b-83df-992a55294f17',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		messageId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['messageId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'write');
+
+			const message = await this.chatService.findMyMessageById(me.id, ps.messageId);
+			if (message == null) {
+				throw new ApiError(meta.errors.noSuchMessage);
+			}
+			await this.chatService.deleteMessage(message);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/messages/react.ts b/packages/backend/src/server/api/endpoints/chat/messages/react.ts
new file mode 100644
index 0000000000..2197e7bf80
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/messages/react.ts
@@ -0,0 +1,48 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'write:chat',
+
+	errors: {
+		noSuchMessage: {
+			message: 'No such message.',
+			code: 'NO_SUCH_MESSAGE',
+			id: '9b5839b9-0ba0-4351-8c35-37082093d200',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		messageId: { type: 'string', format: 'misskey:id' },
+		reaction: { type: 'string' },
+	},
+	required: ['messageId', 'reaction'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'write');
+
+			await this.chatService.react(ps.messageId, me.id, ps.reaction);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/messages/room-timeline.ts b/packages/backend/src/server/api/endpoints/chat/messages/room-timeline.ts
new file mode 100644
index 0000000000..c0e344b889
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/messages/room-timeline.ts
@@ -0,0 +1,75 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'read:chat',
+
+	res: {
+		type: 'array',
+		optional: false, nullable: false,
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+			ref: 'ChatMessageLiteForRoom',
+		},
+	},
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: 'c4d9f88c-9270-4632-b032-6ed8cee36f7f',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+		roomId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['roomId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatEntityService: ChatEntityService,
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'read');
+
+			const room = await this.chatService.findRoomById(ps.roomId);
+			if (room == null) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+
+			if (!await this.chatService.hasPermissionToViewRoomTimeline(me.id, room)) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+
+			const messages = await this.chatService.roomTimeline(room.id, ps.limit, ps.sinceId, ps.untilId);
+
+			this.chatService.readRoomChatMessage(me.id, room.id);
+
+			return await this.chatEntityService.packMessagesLiteForRoom(messages);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/messages/search.ts b/packages/backend/src/server/api/endpoints/chat/messages/search.ts
new file mode 100644
index 0000000000..682597f76d
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/messages/search.ts
@@ -0,0 +1,78 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'read:chat',
+
+	res: {
+		type: 'array',
+		optional: false, nullable: false,
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+			ref: 'ChatMessage',
+		},
+	},
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: '460b3669-81b0-4dc9-a997-44442141bf83',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		query: { type: 'string', minLength: 1, maxLength: 256 },
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
+		userId: { type: 'string', format: 'misskey:id', nullable: true },
+		roomId: { type: 'string', format: 'misskey:id', nullable: true },
+	},
+	required: ['query'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatEntityService: ChatEntityService,
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'read');
+
+			if (ps.roomId != null) {
+				const room = await this.chatService.findRoomById(ps.roomId);
+				if (room == null) {
+					throw new ApiError(meta.errors.noSuchRoom);
+				}
+
+				if (!(await this.chatService.isRoomMember(room, me.id))) {
+					throw new ApiError(meta.errors.noSuchRoom);
+				}
+			}
+
+			const messages = await this.chatService.searchMessages(me.id, ps.query, ps.limit, {
+				userId: ps.userId,
+				roomId: ps.roomId,
+			});
+
+			return await this.chatEntityService.packMessagesDetailed(messages, me);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/messages/show.ts b/packages/backend/src/server/api/endpoints/chat/messages/show.ts
new file mode 100644
index 0000000000..9a2bbb8742
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/messages/show.ts
@@ -0,0 +1,65 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { GetterService } from '@/server/api/GetterService.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+import { ApiError } from '@/server/api/error.js';
+import { RoleService } from '@/core/RoleService.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'read:chat',
+
+	res: {
+		type: 'object',
+		optional: false, nullable: false,
+		ref: 'ChatMessage',
+	},
+
+	errors: {
+		noSuchMessage: {
+			message: 'No such message.',
+			code: 'NO_SUCH_MESSAGE',
+			id: '3710865b-1848-4da9-8d61-cfed15510b93',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		messageId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['messageId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+		private roleService: RoleService,
+		private chatEntityService: ChatEntityService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'read');
+
+			const message = await this.chatService.findMessageById(ps.messageId);
+			if (message == null) {
+				throw new ApiError(meta.errors.noSuchMessage);
+			}
+			if (message.fromUserId !== me.id && message.toUserId !== me.id && !(await this.roleService.isModerator(me))) {
+				throw new ApiError(meta.errors.noSuchMessage);
+			}
+			return this.chatEntityService.packMessageDetailed(message, me);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/messages/unreact.ts b/packages/backend/src/server/api/endpoints/chat/messages/unreact.ts
new file mode 100644
index 0000000000..adfcd232f9
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/messages/unreact.ts
@@ -0,0 +1,48 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'write:chat',
+
+	errors: {
+		noSuchMessage: {
+			message: 'No such message.',
+			code: 'NO_SUCH_MESSAGE',
+			id: 'c39ea42f-e3ca-428a-ad57-390e0a711595',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		messageId: { type: 'string', format: 'misskey:id' },
+		reaction: { type: 'string' },
+	},
+	required: ['messageId', 'reaction'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'write');
+
+			await this.chatService.unreact(ps.messageId, me.id, ps.reaction);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/messages/user-timeline.ts b/packages/backend/src/server/api/endpoints/chat/messages/user-timeline.ts
new file mode 100644
index 0000000000..a057e2e088
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/messages/user-timeline.ts
@@ -0,0 +1,73 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { GetterService } from '@/server/api/GetterService.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'read:chat',
+
+	res: {
+		type: 'array',
+		optional: false, nullable: false,
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+			ref: 'ChatMessageLiteFor1on1',
+		},
+	},
+
+	errors: {
+		noSuchUser: {
+			message: 'No such user.',
+			code: 'NO_SUCH_USER',
+			id: '11795c64-40ea-4198-b06e-3c873ed9039d',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+		userId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['userId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatEntityService: ChatEntityService,
+		private chatService: ChatService,
+		private getterService: GetterService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'read');
+
+			const other = await this.getterService.getUser(ps.userId).catch(err => {
+				if (err.id === '15348ddd-432d-49c2-8a5a-8069753becff') throw new ApiError(meta.errors.noSuchUser);
+				throw err;
+			});
+
+			const messages = await this.chatService.userTimeline(me.id, other.id, ps.limit, ps.sinceId, ps.untilId);
+
+			this.chatService.readUserChatMessage(me.id, other.id);
+
+			return await this.chatEntityService.packMessagesLiteFor1on1(messages);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/rooms/create.ts b/packages/backend/src/server/api/endpoints/chat/rooms/create.ts
new file mode 100644
index 0000000000..68a53f0886
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/rooms/create.ts
@@ -0,0 +1,63 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import ms from 'ms';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ApiError } from '@/server/api/error.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	prohibitMoved: true,
+
+	kind: 'write:chat',
+
+	limit: {
+		duration: ms('1day'),
+		max: 10,
+	},
+
+	res: {
+		type: 'object',
+		optional: false, nullable: false,
+		ref: 'ChatRoom',
+	},
+
+	errors: {
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		name: { type: 'string', maxLength: 256 },
+		description: { type: 'string', maxLength: 1024 },
+	},
+	required: ['name'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+		private chatEntityService: ChatEntityService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'write');
+
+			const room = await this.chatService.createRoom(me, {
+				name: ps.name,
+				description: ps.description ?? '',
+			});
+			return await this.chatEntityService.packRoom(room);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/rooms/delete.ts b/packages/backend/src/server/api/endpoints/chat/rooms/delete.ts
new file mode 100644
index 0000000000..1ea81448c1
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/rooms/delete.ts
@@ -0,0 +1,56 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'write:chat',
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: 'd4e3753d-97bf-4a19-ab8e-21080fbc0f4b',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['roomId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'write');
+
+			const room = await this.chatService.findRoomById(ps.roomId);
+			if (room == null) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+
+			if (!await this.chatService.hasPermissionToDeleteRoom(me.id, room)) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+
+			await this.chatService.deleteRoom(room, me);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/rooms/invitations/create.ts b/packages/backend/src/server/api/endpoints/chat/rooms/invitations/create.ts
new file mode 100644
index 0000000000..b1f049f2b9
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/rooms/invitations/create.ts
@@ -0,0 +1,69 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import ms from 'ms';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ApiError } from '@/server/api/error.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	prohibitMoved: true,
+
+	kind: 'write:chat',
+
+	limit: {
+		duration: ms('1day'),
+		max: 50,
+	},
+
+	res: {
+		type: 'object',
+		optional: false, nullable: false,
+		ref: 'ChatRoomInvitation',
+	},
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: '916f9507-49ba-4e90-b57f-1fd4deaa47a5',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+		userId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['roomId', 'userId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+		private chatEntityService: ChatEntityService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'write');
+
+			const room = await this.chatService.findMyRoomById(me.id, ps.roomId);
+			if (room == null) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+			const invitation = await this.chatService.createRoomInvitation(me.id, room.id, ps.userId);
+			return await this.chatEntityService.packRoomInvitation(invitation, me);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/rooms/invitations/ignore.ts b/packages/backend/src/server/api/endpoints/chat/rooms/invitations/ignore.ts
new file mode 100644
index 0000000000..88ea234527
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/rooms/invitations/ignore.ts
@@ -0,0 +1,47 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'write:chat',
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: '5130557e-5a11-4cfb-9cc5-fe60cda5de0d',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['roomId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'write');
+
+			await this.chatService.ignoreRoomInvitation(me.id, ps.roomId);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/rooms/invitations/inbox.ts b/packages/backend/src/server/api/endpoints/chat/rooms/invitations/inbox.ts
new file mode 100644
index 0000000000..8a02d1c704
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/rooms/invitations/inbox.ts
@@ -0,0 +1,56 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'read:chat',
+
+	res: {
+		type: 'array',
+		optional: false, nullable: false,
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+			ref: 'ChatRoomInvitation',
+		},
+	},
+
+	errors: {
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 30 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+	},
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatEntityService: ChatEntityService,
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'read');
+
+			const invitations = await this.chatService.getReceivedRoomInvitationsWithPagination(me.id, ps.limit, ps.sinceId, ps.untilId);
+			return this.chatEntityService.packRoomInvitations(invitations, me);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/rooms/invitations/outbox.ts b/packages/backend/src/server/api/endpoints/chat/rooms/invitations/outbox.ts
new file mode 100644
index 0000000000..0702ba086c
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/rooms/invitations/outbox.ts
@@ -0,0 +1,69 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import ms from 'ms';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ApiError } from '@/server/api/error.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'read:chat',
+
+	res: {
+		type: 'array',
+		optional: false, nullable: false,
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+			ref: 'ChatRoomInvitation',
+		},
+	},
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: 'a3c6b309-9717-4316-ae94-a69b53437237',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 30 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['roomId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+		private chatEntityService: ChatEntityService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'read');
+
+			const room = await this.chatService.findMyRoomById(me.id, ps.roomId);
+			if (room == null) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+
+			const invitations = await this.chatService.getSentRoomInvitationsWithPagination(ps.roomId, ps.limit, ps.sinceId, ps.untilId);
+			return this.chatEntityService.packRoomInvitations(invitations, me);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/rooms/join.ts b/packages/backend/src/server/api/endpoints/chat/rooms/join.ts
new file mode 100644
index 0000000000..550b4da1a6
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/rooms/join.ts
@@ -0,0 +1,47 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'write:chat',
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: '84416476-5ce8-4a2c-b568-9569f1b10733',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['roomId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'write');
+
+			await this.chatService.joinToRoom(me.id, ps.roomId);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/rooms/joining.ts b/packages/backend/src/server/api/endpoints/chat/rooms/joining.ts
new file mode 100644
index 0000000000..ba9242c762
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/rooms/joining.ts
@@ -0,0 +1,60 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'read:chat',
+
+	res: {
+		type: 'array',
+		optional: false, nullable: false,
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+			ref: 'ChatRoomMembership',
+		},
+	},
+
+	errors: {
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 30 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+	},
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+		private chatEntityService: ChatEntityService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'read');
+
+			const memberships = await this.chatService.getMyMemberships(me.id, ps.limit, ps.sinceId, ps.untilId);
+
+			return this.chatEntityService.packRoomMemberships(memberships, me, {
+				populateUser: false,
+				populateRoom: true,
+			});
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/rooms/leave.ts b/packages/backend/src/server/api/endpoints/chat/rooms/leave.ts
new file mode 100644
index 0000000000..f99b408d67
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/rooms/leave.ts
@@ -0,0 +1,47 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'write:chat',
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: 'cb7f3179-50e8-4389-8c30-dbe2650a67c9',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['roomId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'write');
+
+			await this.chatService.leaveRoom(me.id, ps.roomId);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/rooms/members.ts b/packages/backend/src/server/api/endpoints/chat/rooms/members.ts
new file mode 100644
index 0000000000..f5ffa21d32
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/rooms/members.ts
@@ -0,0 +1,76 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'write:chat',
+
+	res: {
+		type: 'array',
+		optional: false, nullable: false,
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+			ref: 'ChatRoomMembership',
+		},
+	},
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: '7b9fe84c-eafc-4d21-bf89-485458ed2c18',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 30 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['roomId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+		private chatEntityService: ChatEntityService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'read');
+
+			const room = await this.chatService.findRoomById(ps.roomId);
+			if (room == null) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+
+			if (!(await this.chatService.isRoomMember(room, me.id))) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+
+			const memberships = await this.chatService.getRoomMembershipsWithPagination(room.id, ps.limit, ps.sinceId, ps.untilId);
+
+			return this.chatEntityService.packRoomMemberships(memberships, me, {
+				populateUser: true,
+				populateRoom: false,
+			});
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/rooms/mute.ts b/packages/backend/src/server/api/endpoints/chat/rooms/mute.ts
new file mode 100644
index 0000000000..ee60f92505
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/rooms/mute.ts
@@ -0,0 +1,48 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'write:chat',
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: 'c2cde4eb-8d0f-42f1-8f2f-c4d6bfc8e5df',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+		mute: { type: 'boolean' },
+	},
+	required: ['roomId', 'mute'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'write');
+
+			await this.chatService.muteRoom(me.id, ps.roomId, ps.mute);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/rooms/owned.ts b/packages/backend/src/server/api/endpoints/chat/rooms/owned.ts
new file mode 100644
index 0000000000..accf7e1bee
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/rooms/owned.ts
@@ -0,0 +1,56 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'read:chat',
+
+	res: {
+		type: 'array',
+		optional: false, nullable: false,
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+			ref: 'ChatRoom',
+		},
+	},
+
+	errors: {
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 30 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+	},
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatEntityService: ChatEntityService,
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'read');
+
+			const rooms = await this.chatService.getOwnedRoomsWithPagination(me.id, ps.limit, ps.sinceId, ps.untilId);
+			return this.chatEntityService.packRooms(rooms, me);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/rooms/show.ts b/packages/backend/src/server/api/endpoints/chat/rooms/show.ts
new file mode 100644
index 0000000000..50da210d81
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/rooms/show.ts
@@ -0,0 +1,60 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'read:chat',
+
+	res: {
+		type: 'object',
+		optional: false, nullable: false,
+		ref: 'ChatRoom',
+	},
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: '857ae02f-8759-4d20-9adb-6e95fffe4fd7',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['roomId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+		private chatEntityService: ChatEntityService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'read');
+
+			const room = await this.chatService.findRoomById(ps.roomId);
+			if (room == null) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+
+			return this.chatEntityService.packRoom(room, me);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/chat/rooms/update.ts b/packages/backend/src/server/api/endpoints/chat/rooms/update.ts
new file mode 100644
index 0000000000..0cd62cb040
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/chat/rooms/update.ts
@@ -0,0 +1,67 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'write:chat',
+
+	res: {
+		type: 'object',
+		optional: false, nullable: false,
+		ref: 'ChatRoom',
+	},
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: 'fcdb0f92-bda6-47f9-bd05-343e0e020932',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+		name: { type: 'string', maxLength: 256 },
+		description: { type: 'string', maxLength: 1024 },
+	},
+	required: ['roomId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+		private chatEntityService: ChatEntityService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.checkChatAvailability(me.id, 'write');
+
+			const room = await this.chatService.findMyRoomById(me.id, ps.roomId);
+			if (room == null) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+
+			const updated = await this.chatService.updateRoom(room, {
+				name: ps.name,
+				description: ps.description,
+			});
+
+			return this.chatEntityService.packRoom(updated, me);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/clips/create.ts b/packages/backend/src/server/api/endpoints/clips/create.ts
index c2f72ad9ae..e3b8f33f97 100644
--- a/packages/backend/src/server/api/endpoints/clips/create.ts
+++ b/packages/backend/src/server/api/endpoints/clips/create.ts
@@ -45,7 +45,7 @@ export const paramDef = {
 	properties: {
 		name: { type: 'string', minLength: 1, maxLength: 100 },
 		isPublic: { type: 'boolean', default: false },
-		description: { type: 'string', nullable: true, minLength: 1, maxLength: 2048 },
+		description: { type: 'string', nullable: true, maxLength: 2048 },
 	},
 	required: ['name'],
 } as const;
@@ -59,7 +59,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		super(meta, paramDef, async (ps, me) => {
 			let clip: MiClip;
 			try {
-				clip = await this.clipService.create(me, ps.name, ps.isPublic, ps.description ?? null);
+				// 空文字列をnullにしたいので??は使わない
+				// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
+				clip = await this.clipService.create(me, ps.name, ps.isPublic, ps.description || null);
 			} catch (e) {
 				if (e instanceof ClipService.TooManyClipsError) {
 					throw new ApiError(meta.errors.tooManyClips);
diff --git a/packages/backend/src/server/api/endpoints/clips/notes.ts b/packages/backend/src/server/api/endpoints/clips/notes.ts
index 6175c4d0e5..59513e530d 100644
--- a/packages/backend/src/server/api/endpoints/clips/notes.ts
+++ b/packages/backend/src/server/api/endpoints/clips/notes.ts
@@ -91,10 +91,11 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				.leftJoinAndSelect('renote.user', 'renoteUser')
 				.andWhere('clipNote.clipId = :clipId', { clipId: clip.id });
 
+			this.queryService.generateBlockedHostQueryForNote(query);
 			if (me) {
 				this.queryService.generateVisibilityQuery(query, me);
-				this.queryService.generateMutedUserQuery(query, me);
-				this.queryService.generateBlockedUserQuery(query, me);
+				this.queryService.generateMutedUserQueryForNotes(query, me);
+				this.queryService.generateBlockedUserQueryForNotes(query, me);
 			}
 
 			const notes = await query
diff --git a/packages/backend/src/server/api/endpoints/clips/update.ts b/packages/backend/src/server/api/endpoints/clips/update.ts
index b776f1357d..beab427b69 100644
--- a/packages/backend/src/server/api/endpoints/clips/update.ts
+++ b/packages/backend/src/server/api/endpoints/clips/update.ts
@@ -45,7 +45,7 @@ export const paramDef = {
 		clipId: { type: 'string', format: 'misskey:id' },
 		name: { type: 'string', minLength: 1, maxLength: 100 },
 		isPublic: { type: 'boolean' },
-		description: { type: 'string', nullable: true, minLength: 1, maxLength: 2048 },
+		description: { type: 'string', nullable: true, maxLength: 2048 },
 	},
 	required: ['clipId'],
 } as const;
@@ -59,7 +59,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			try {
-				await this.clipService.update(me, ps.clipId, ps.name, ps.isPublic, ps.description);
+				// 空文字列をnullにしたいので??は使わない
+				// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
+				await this.clipService.update(me, ps.clipId, ps.name, ps.isPublic, ps.description || null);
 			} catch (e) {
 				if (e instanceof ClipService.NoSuchClipError) {
 					throw new ApiError(meta.errors.noSuchClip);
diff --git a/packages/backend/src/server/api/endpoints/drive/files.ts b/packages/backend/src/server/api/endpoints/drive/files.ts
index 5df212415d..26b7b32001 100644
--- a/packages/backend/src/server/api/endpoints/drive/files.ts
+++ b/packages/backend/src/server/api/endpoints/drive/files.ts
@@ -46,6 +46,7 @@ export const paramDef = {
 		type: { type: 'string', nullable: true, pattern: /^[a-zA-Z\/\-*]+$/.toString().slice(1, -1) },
 		sort: { type: 'string', nullable: true, enum: ['+createdAt', '-createdAt', '+name', '-name', '+size', '-size', null] },
 		searchQuery: { type: 'string', default: '' },
+		showAll: { type: 'boolean', default: false },
 	},
 	required: [],
 } as const;
@@ -63,10 +64,12 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			const query = this.queryService.makePaginationQuery(this.driveFilesRepository.createQueryBuilder('file'), ps.sinceId, ps.untilId)
 				.andWhere('file.userId = :userId', { userId: me.id });
 
-			if (ps.folderId) {
-				query.andWhere('file.folderId = :folderId', { folderId: ps.folderId });
-			} else {
-				query.andWhere('file.folderId IS NULL');
+			if (!ps.showAll) {
+				if (ps.folderId) {
+					query.andWhere('file.folderId = :folderId', { folderId: ps.folderId });
+				} else {
+					query.andWhere('file.folderId IS NULL');
+				}
 			}
 
 			if (ps.searchQuery.length > 0) {
diff --git a/packages/backend/src/server/api/endpoints/drive/files/create.ts b/packages/backend/src/server/api/endpoints/drive/files/create.ts
index f67ff6ddc4..f4c47d71bf 100644
--- a/packages/backend/src/server/api/endpoints/drive/files/create.ts
+++ b/packages/backend/src/server/api/endpoints/drive/files/create.ts
@@ -62,6 +62,13 @@ export const meta = {
 			code: 'COMMENT_TOO_LONG',
 			id: '333652d9-0826-40f5-a2c3-e2bedcbb9fe5',
 		},
+
+		maxFileSizeExceeded: {
+			message: 'Cannot upload the file because it exceeds the maximum file size.',
+			code: 'MAX_FILE_SIZE_EXCEEDED',
+			id: 'b9d8c348-33f0-4673-b9a9-5d4da058977a',
+			httpStatusCode: 413,
+		},
 	},
 } as const;
 
@@ -128,6 +135,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				if (err instanceof IdentifiableError) {
 					if (err.id === '282f77bf-5816-4f72-9264-aa14d8261a21') throw new ApiError(meta.errors.inappropriate);
 					if (err.id === 'c6244ed2-a39a-4e1c-bf93-f0fbd7764fa6') throw new ApiError(meta.errors.noFreeSpace);
+					if (err.id === 'f9e4e5f3-4df4-40b5-b400-f236945f7073') throw new ApiError(meta.errors.maxFileSizeExceeded);
 				}
 				throw new ApiError();
 			} finally {
diff --git a/packages/backend/src/server/api/endpoints/federation/instances.ts b/packages/backend/src/server/api/endpoints/federation/instances.ts
index 97384d2498..eeaebc3708 100644
--- a/packages/backend/src/server/api/endpoints/federation/instances.ts
+++ b/packages/backend/src/server/api/endpoints/federation/instances.ts
@@ -113,11 +113,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			}
 
 			if (typeof ps.blocked === 'boolean') {
-				const meta = await this.metaService.fetch(true);
 				if (ps.blocked) {
-					query.andWhere(meta.blockedHosts.length === 0 ? '1=0' : 'instance.host IN (:...blocks)', { blocks: meta.blockedHosts });
+					query.andWhere('instance.host IN (select unnest("blockedHosts") as x from "meta")');
 				} else {
-					query.andWhere(meta.blockedHosts.length === 0 ? '1=1' : 'instance.host NOT IN (:...blocks)', { blocks: meta.blockedHosts });
+					query.andWhere('instance.host NOT IN (select unnest("blockedHosts") as x from "meta")');
 				}
 			}
 
@@ -146,36 +145,18 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			}
 
 			if (typeof ps.silenced === 'boolean') {
-				const meta = await this.metaService.fetch(true);
-
 				if (ps.silenced) {
-					if (meta.silencedHosts.length === 0) {
-						return [];
-					}
-					query.andWhere('instance.host IN (:...silences)', {
-						silences: meta.silencedHosts,
-					});
-				} else if (meta.silencedHosts.length > 0) {
-					query.andWhere('instance.host NOT IN (:...silences)', {
-						silences: meta.silencedHosts,
-					});
+					query.andWhere('instance.host IN (select unnest("silencedHosts") as x from "meta")');
+				} else {
+					query.andWhere('instance.host NOT IN (select unnest("silencedHosts") as x from "meta")');
 				}
 			}
 
 			if (typeof ps.bubble === 'boolean') {
-				const meta = await this.metaService.fetch(true);
-
 				if (ps.bubble) {
-					if (meta.bubbleInstances.length === 0) {
-						return [];
-					}
-					query.andWhere('instance.host IN (:...bubble)', {
-						bubble: meta.bubbleInstances,
-					});
-				} else if (meta.bubbleInstances.length > 0) {
-					query.andWhere('instance.host NOT IN (:...bubble)', {
-						bubble: meta.bubbleInstances,
-					});
+					query.andWhere('instance.host IN (select unnest("bubbleInstances") as x from "meta")');
+				} else {
+					query.andWhere('instance.host NOT IN (select unnest("bubbleInstances") as x from "meta")');
 				}
 			}
 
diff --git a/packages/backend/src/server/api/endpoints/federation/update-remote-user.ts b/packages/backend/src/server/api/endpoints/federation/update-remote-user.ts
index 5217f79065..67fa5ed343 100644
--- a/packages/backend/src/server/api/endpoints/federation/update-remote-user.ts
+++ b/packages/backend/src/server/api/endpoints/federation/update-remote-user.ts
@@ -16,7 +16,8 @@ export const meta = {
 	// Up to 10 calls, then 4 / second.
 	// This allows for reliable automation.
 	limit: {
-		max: 10,
+		type: 'bucket',
+		size: 10,
 		dripRate: 250,
 	},
 } as const;
diff --git a/packages/backend/src/server/api/endpoints/following/invalidate.ts b/packages/backend/src/server/api/endpoints/following/invalidate.ts
index 8935c2c2da..b45d21410b 100644
--- a/packages/backend/src/server/api/endpoints/following/invalidate.ts
+++ b/packages/backend/src/server/api/endpoints/following/invalidate.ts
@@ -96,7 +96,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 			await this.userFollowingService.unfollow(follower, followee);
 
-			return await this.userEntityService.pack(followee.id, me);
+			return await this.userEntityService.pack(follower.id, me);
 		});
 	}
 }
diff --git a/packages/backend/src/server/api/endpoints/gallery/posts/like.ts b/packages/backend/src/server/api/endpoints/gallery/posts/like.ts
index e73110648c..ae8ad6c044 100644
--- a/packages/backend/src/server/api/endpoints/gallery/posts/like.ts
+++ b/packages/backend/src/server/api/endpoints/gallery/posts/like.ts
@@ -98,7 +98,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 			// ランキング更新
 			if (Date.now() - this.idService.parse(post.id).date.getTime() < GALLERY_POSTS_RANKING_WINDOW) {
-				await this.featuredService.updateGalleryPostsRanking(post.id, 1);
+				await this.featuredService.updateGalleryPostsRanking(post, 1);
 			}
 
 			this.galleryPostsRepository.increment({ id: post.id }, 'likedCount', 1);
diff --git a/packages/backend/src/server/api/endpoints/gallery/posts/unlike.ts b/packages/backend/src/server/api/endpoints/gallery/posts/unlike.ts
index b0fad1eff2..be0a5a5584 100644
--- a/packages/backend/src/server/api/endpoints/gallery/posts/unlike.ts
+++ b/packages/backend/src/server/api/endpoints/gallery/posts/unlike.ts
@@ -81,7 +81,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 			// ランキング更新
 			if (Date.now() - this.idService.parse(post.id).date.getTime() < GALLERY_POSTS_RANKING_WINDOW) {
-				await this.featuredService.updateGalleryPostsRanking(post.id, -1);
+				await this.featuredService.updateGalleryPostsRanking(post, -1);
 			}
 
 			this.galleryPostsRepository.decrement({ id: post.id }, 'likedCount', 1);
diff --git a/packages/backend/src/server/api/endpoints/hashtags/list.ts b/packages/backend/src/server/api/endpoints/hashtags/list.ts
index f378c5558e..b49c907432 100644
--- a/packages/backend/src/server/api/endpoints/hashtags/list.ts
+++ b/packages/backend/src/server/api/endpoints/hashtags/list.ts
@@ -58,6 +58,12 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			if (ps.attachedToLocalUserOnly) query.andWhere('tag.attachedLocalUsersCount != 0');
 			if (ps.attachedToRemoteUserOnly) query.andWhere('tag.attachedRemoteUsersCount != 0');
 
+			// Ignore hidden hashtags
+			query.andWhere(`
+				NOT EXISTS (
+    			SELECT 1 FROM meta WHERE tag.name = ANY(meta."hiddenTags")
+				)`);
+
 			switch (ps.sort) {
 				case '+mentionedUsers': query.orderBy('tag.mentionedUsersCount', 'DESC'); break;
 				case '-mentionedUsers': query.orderBy('tag.mentionedUsersCount', 'ASC'); break;
diff --git a/packages/backend/src/server/api/endpoints/hashtags/users.ts b/packages/backend/src/server/api/endpoints/hashtags/users.ts
index eb2289960a..68c795de73 100644
--- a/packages/backend/src/server/api/endpoints/hashtags/users.ts
+++ b/packages/backend/src/server/api/endpoints/hashtags/users.ts
@@ -10,6 +10,7 @@ import { safeForSql } from "@/misc/safe-for-sql.js";
 import { normalizeForSearch } from '@/misc/normalize-for-search.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
 import { DI } from '@/di-symbols.js';
+import { RoleService } from '@/core/RoleService.js';
 
 export const meta = {
 	requireCredential: false,
@@ -41,6 +42,7 @@ export const paramDef = {
 		sort: { type: 'string', enum: ['+follower', '-follower', '+createdAt', '-createdAt', '+updatedAt', '-updatedAt'] },
 		state: { type: 'string', enum: ['all', 'alive'], default: 'all' },
 		origin: { type: 'string', enum: ['combined', 'local', 'remote'], default: 'local' },
+		trending: { type: 'boolean', default: false },
 	},
 	required: ['tag', 'sort'],
 } as const;
@@ -52,6 +54,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private usersRepository: UsersRepository,
 
 		private userEntityService: UserEntityService,
+		private readonly roleService: RoleService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			if (!safeForSql(normalizeForSearch(ps.tag))) throw new Error('Injection');
@@ -80,7 +83,18 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				case '-updatedAt': query.orderBy('user.updatedAt', 'ASC'); break;
 			}
 
-			const users = await query.limit(ps.limit).getMany();
+			let users = await query.limit(ps.limit).getMany();
+
+			// This is not ideal, for a couple of reasons:
+			// 1. It may return less than "limit" results.
+			// 2. A span of more than "limit" consecutive non-trendable users may cause the pagination to stop early.
+			// Unfortunately, there's no better solution unless we refactor role policies to be persisted to the DB.
+			if (ps.trending) {
+				const usersWithRoles = await Promise.all(users.map(async u => [u, await this.roleService.getUserPolicies(u)] as const));
+				users = usersWithRoles
+					.filter(([,p]) => p.canTrend)
+					.map(([u]) => u);
+			}
 
 			return await this.userEntityService.packMany(users, me, { schema: 'UserDetailed' });
 		});
diff --git a/packages/backend/src/server/api/endpoints/i.ts b/packages/backend/src/server/api/endpoints/i.ts
index 48a2e3b40a..177bc601ac 100644
--- a/packages/backend/src/server/api/endpoints/i.ts
+++ b/packages/backend/src/server/api/endpoints/i.ts
@@ -34,7 +34,8 @@ export const meta = {
 	// up to 20 calls, then 1 per second.
 	// This handles bursty traffic when all tabs reload as a group
 	limit: {
-		max: 20,
+		type: 'bucket',
+		size: 20,
 		dripSize: 1,
 		dripRate: 1000,
 	},
diff --git a/packages/backend/src/server/api/endpoints/i/2fa/key-done.ts b/packages/backend/src/server/api/endpoints/i/2fa/key-done.ts
index 370d9915a3..6d1972456d 100644
--- a/packages/backend/src/server/api/endpoints/i/2fa/key-done.ts
+++ b/packages/backend/src/server/api/endpoints/i/2fa/key-done.ts
@@ -3,7 +3,6 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-//import bcrypt from 'bcryptjs';
 import * as argon2 from 'argon2';
 import { Inject, Injectable } from '@nestjs/common';
 import ms from 'ms';
diff --git a/packages/backend/src/server/api/endpoints/i/2fa/register-key.ts b/packages/backend/src/server/api/endpoints/i/2fa/register-key.ts
index 893ea30391..77f71ce5fd 100644
--- a/packages/backend/src/server/api/endpoints/i/2fa/register-key.ts
+++ b/packages/backend/src/server/api/endpoints/i/2fa/register-key.ts
@@ -3,7 +3,6 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-//import bcrypt from 'bcryptjs';
 import * as argon2 from 'argon2';
 import { Inject, Injectable } from '@nestjs/common';
 import ms from 'ms';
diff --git a/packages/backend/src/server/api/endpoints/i/2fa/register.ts b/packages/backend/src/server/api/endpoints/i/2fa/register.ts
index d27c14c69b..6fde3a90a7 100644
--- a/packages/backend/src/server/api/endpoints/i/2fa/register.ts
+++ b/packages/backend/src/server/api/endpoints/i/2fa/register.ts
@@ -3,7 +3,6 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-//import bcrypt from 'bcryptjs';
 import * as argon2 from 'argon2';
 import * as OTPAuth from 'otpauth';
 import * as QRCode from 'qrcode';
diff --git a/packages/backend/src/server/api/endpoints/i/2fa/remove-key.ts b/packages/backend/src/server/api/endpoints/i/2fa/remove-key.ts
index b01e452056..d4098458d7 100644
--- a/packages/backend/src/server/api/endpoints/i/2fa/remove-key.ts
+++ b/packages/backend/src/server/api/endpoints/i/2fa/remove-key.ts
@@ -3,7 +3,6 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-//import bcrypt from 'bcryptjs';
 import * as argon2 from 'argon2';
 import { Inject, Injectable } from '@nestjs/common';
 import ms from 'ms';
diff --git a/packages/backend/src/server/api/endpoints/i/2fa/unregister.ts b/packages/backend/src/server/api/endpoints/i/2fa/unregister.ts
index 2fe4fdc4c0..fc5a51f81b 100644
--- a/packages/backend/src/server/api/endpoints/i/2fa/unregister.ts
+++ b/packages/backend/src/server/api/endpoints/i/2fa/unregister.ts
@@ -3,7 +3,6 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-//import bcrypt from 'bcryptjs';
 import * as argon2 from 'argon2';
 import { Inject, Injectable } from '@nestjs/common';
 import ms from 'ms';
diff --git a/packages/backend/src/server/api/endpoints/i/2fa/update-key.ts b/packages/backend/src/server/api/endpoints/i/2fa/update-key.ts
index 4a41c7b984..a9f631cfaf 100644
--- a/packages/backend/src/server/api/endpoints/i/2fa/update-key.ts
+++ b/packages/backend/src/server/api/endpoints/i/2fa/update-key.ts
@@ -3,7 +3,6 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-//import bcrypt from 'bcryptjs';
 import { Inject, Injectable } from '@nestjs/common';
 import ms from 'ms';
 import { Endpoint } from '@/server/api/endpoint-base.js';
diff --git a/packages/backend/src/server/api/endpoints/i/change-password.ts b/packages/backend/src/server/api/endpoints/i/change-password.ts
index 4069683740..ea84ef24d7 100644
--- a/packages/backend/src/server/api/endpoints/i/change-password.ts
+++ b/packages/backend/src/server/api/endpoints/i/change-password.ts
@@ -3,7 +3,6 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-//import bcrypt from 'bcryptjs';
 import * as argon2 from 'argon2';
 import { Inject, Injectable } from '@nestjs/common';
 import ms from 'ms';
@@ -65,7 +64,6 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			}
 
 			// Generate hash of password
-			//const salt = await bcrypt.genSalt(8);
 			const hash = await argon2.hash(ps.newPassword);
 
 			await this.userProfilesRepository.update(me.id, {
diff --git a/packages/backend/src/server/api/endpoints/i/delete-account.ts b/packages/backend/src/server/api/endpoints/i/delete-account.ts
index 10fb923d4f..8a2b523449 100644
--- a/packages/backend/src/server/api/endpoints/i/delete-account.ts
+++ b/packages/backend/src/server/api/endpoints/i/delete-account.ts
@@ -3,7 +3,6 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-//import bcrypt from 'bcryptjs';
 import * as argon2 from 'argon2';
 import { Inject, Injectable } from '@nestjs/common';
 import ms from 'ms';
diff --git a/packages/backend/src/server/api/endpoints/i/import-antennas.ts b/packages/backend/src/server/api/endpoints/i/import-antennas.ts
index bdf6c065e8..ccec96ffbb 100644
--- a/packages/backend/src/server/api/endpoints/i/import-antennas.ts
+++ b/packages/backend/src/server/api/endpoints/i/import-antennas.ts
@@ -16,7 +16,7 @@ import { ApiError } from '../../error.js';
 export const meta = {
 	secure: true,
 	requireCredential: true,
-	requireRolePolicy: 'canImportAntennas',
+	requiredRolePolicy: 'canImportAntennas',
 	prohibitMoved: true,
 
 	limit: {
diff --git a/packages/backend/src/server/api/endpoints/i/import-blocking.ts b/packages/backend/src/server/api/endpoints/i/import-blocking.ts
index d7bb6bcd22..2fa450558b 100644
--- a/packages/backend/src/server/api/endpoints/i/import-blocking.ts
+++ b/packages/backend/src/server/api/endpoints/i/import-blocking.ts
@@ -15,7 +15,7 @@ import { ApiError } from '../../error.js';
 export const meta = {
 	secure: true,
 	requireCredential: true,
-	requireRolePolicy: 'canImportBlocking',
+	requiredRolePolicy: 'canImportBlocking',
 	prohibitMoved: true,
 
 	limit: {
diff --git a/packages/backend/src/server/api/endpoints/i/import-following.ts b/packages/backend/src/server/api/endpoints/i/import-following.ts
index e03192d8c6..9186fca162 100644
--- a/packages/backend/src/server/api/endpoints/i/import-following.ts
+++ b/packages/backend/src/server/api/endpoints/i/import-following.ts
@@ -15,7 +15,7 @@ import { ApiError } from '../../error.js';
 export const meta = {
 	secure: true,
 	requireCredential: true,
-	requireRolePolicy: 'canImportFollowing',
+	requiredRolePolicy: 'canImportFollowing',
 	prohibitMoved: true,
 	limit: {
 		duration: ms('1hour'),
diff --git a/packages/backend/src/server/api/endpoints/i/import-muting.ts b/packages/backend/src/server/api/endpoints/i/import-muting.ts
index 76b285bb7e..b6dbacd371 100644
--- a/packages/backend/src/server/api/endpoints/i/import-muting.ts
+++ b/packages/backend/src/server/api/endpoints/i/import-muting.ts
@@ -15,7 +15,7 @@ import { ApiError } from '../../error.js';
 export const meta = {
 	secure: true,
 	requireCredential: true,
-	requireRolePolicy: 'canImportMuting',
+	requiredRolePolicy: 'canImportMuting',
 	prohibitMoved: true,
 
 	limit: {
diff --git a/packages/backend/src/server/api/endpoints/i/import-user-lists.ts b/packages/backend/src/server/api/endpoints/i/import-user-lists.ts
index 76ecfd082c..5de0a70bbb 100644
--- a/packages/backend/src/server/api/endpoints/i/import-user-lists.ts
+++ b/packages/backend/src/server/api/endpoints/i/import-user-lists.ts
@@ -15,7 +15,7 @@ import { ApiError } from '../../error.js';
 export const meta = {
 	secure: true,
 	requireCredential: true,
-	requireRolePolicy: 'canImportUserLists',
+	requiredRolePolicy: 'canImportUserLists',
 	prohibitMoved: true,
 	limit: {
 		duration: ms('1hour'),
diff --git a/packages/backend/src/server/api/endpoints/i/move.ts b/packages/backend/src/server/api/endpoints/i/move.ts
index 1bd641232c..7852b5a2e1 100644
--- a/packages/backend/src/server/api/endpoints/i/move.ts
+++ b/packages/backend/src/server/api/endpoints/i/move.ts
@@ -3,7 +3,7 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-import { Injectable } from '@nestjs/common';
+import { Inject, Injectable } from '@nestjs/common';
 import ms from 'ms';
 
 import { Endpoint } from '@/server/api/endpoint-base.js';
@@ -19,6 +19,8 @@ import { ApPersonService } from '@/core/activitypub/models/ApPersonService.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
 
 import * as Acct from '@/misc/acct.js';
+import { DI } from '@/di-symbols.js';
+import { MiMeta } from '@/models/_.js';
 
 export const meta = {
 	tags: ['users'],
@@ -81,6 +83,9 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		private remoteUserResolveService: RemoteUserResolveService,
 		private apiLoggerService: ApiLoggerService,
 		private accountMoveService: AccountMoveService,
@@ -92,7 +97,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			// check parameter
 			if (!ps.moveToAccount) throw new ApiError(meta.errors.noSuchUser);
 			// abort if user is the root
-			if (me.isRoot) throw new ApiError(meta.errors.rootForbidden);
+			if (this.serverSettings.rootUserId === me.id) throw new ApiError(meta.errors.rootForbidden);
 			// abort if user has already moved
 			if (me.movedToUri) throw new ApiError(meta.errors.alreadyMoved);
 
diff --git a/packages/backend/src/server/api/endpoints/i/notifications-grouped.ts b/packages/backend/src/server/api/endpoints/i/notifications-grouped.ts
index ad4577be58..b9c41b057d 100644
--- a/packages/backend/src/server/api/endpoints/i/notifications-grouped.ts
+++ b/packages/backend/src/server/api/endpoints/i/notifications-grouped.ts
@@ -7,9 +7,13 @@ import { In } from 'typeorm';
 import * as Redis from 'ioredis';
 import { Inject, Injectable } from '@nestjs/common';
 import type { NotesRepository } from '@/models/_.js';
-import { obsoleteNotificationTypes, groupedNotificationTypes, FilterUnionByProperty } from '@/types.js';
+import {
+	obsoleteNotificationTypes,
+	groupedNotificationTypes,
+	FilterUnionByProperty,
+	notificationTypes,
+} from '@/types.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
-import { NoteReadService } from '@/core/NoteReadService.js';
 import { NotificationEntityService } from '@/core/entities/NotificationEntityService.js';
 import { NotificationService } from '@/core/NotificationService.js';
 import { DI } from '@/di-symbols.js';
@@ -48,10 +52,10 @@ export const paramDef = {
 		markAsRead: { type: 'boolean', default: true },
 		// 後方互換のため、廃止された通知タイプも受け付ける
 		includeTypes: { type: 'array', items: {
-			type: 'string', enum: [...groupedNotificationTypes, ...obsoleteNotificationTypes],
+			type: 'string', enum: [...notificationTypes, ...obsoleteNotificationTypes],
 		} },
 		excludeTypes: { type: 'array', items: {
-			type: 'string', enum: [...groupedNotificationTypes, ...obsoleteNotificationTypes],
+			type: 'string', enum: [...notificationTypes, ...obsoleteNotificationTypes],
 		} },
 	},
 	required: [],
@@ -63,13 +67,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		@Inject(DI.redis)
 		private redisClient: Redis.Redis,
 
-		@Inject(DI.notesRepository)
-		private notesRepository: NotesRepository,
-
 		private idService: IdService,
 		private notificationEntityService: NotificationEntityService,
 		private notificationService: NotificationService,
-		private noteReadService: NoteReadService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const EXTRA_LIMIT = 100;
@@ -79,31 +79,20 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				return [];
 			}
 			// excludeTypes に全指定されている場合はクエリしない
-			if (groupedNotificationTypes.every(type => ps.excludeTypes?.includes(type))) {
+			if (notificationTypes.every(type => ps.excludeTypes?.includes(type))) {
 				return [];
 			}
 
 			const includeTypes = ps.includeTypes && ps.includeTypes.filter(type => !(obsoleteNotificationTypes).includes(type as any)) as typeof groupedNotificationTypes[number][];
 			const excludeTypes = ps.excludeTypes && ps.excludeTypes.filter(type => !(obsoleteNotificationTypes).includes(type as any)) as typeof groupedNotificationTypes[number][];
 
-			const limit = (ps.limit + EXTRA_LIMIT) + (ps.untilId ? 1 : 0) + (ps.sinceId ? 1 : 0); // untilIdに指定したものも含まれるため+1
-			const notificationsRes = await this.redisClient.xrevrange(
-				`notificationTimeline:${me.id}`,
-				ps.untilId ? this.idService.parse(ps.untilId).date.getTime() : '+',
-				ps.sinceId ? this.idService.parse(ps.sinceId).date.getTime() : '-',
-				'COUNT', limit);
-
-			if (notificationsRes.length === 0) {
-				return [];
-			}
-
-			let notifications = notificationsRes.map(x => JSON.parse(x[1][1])).filter(x => x.id !== ps.untilId && x !== ps.sinceId) as MiNotification[];
-
-			if (includeTypes && includeTypes.length > 0) {
-				notifications = notifications.filter(notification => includeTypes.includes(notification.type));
-			} else if (excludeTypes && excludeTypes.length > 0) {
-				notifications = notifications.filter(notification => !excludeTypes.includes(notification.type));
-			}
+			const notifications = await this.notificationService.getNotifications(me.id, {
+				sinceId: ps.sinceId,
+				untilId: ps.untilId,
+				limit: ps.limit,
+				includeTypes,
+				excludeTypes,
+			});
 
 			if (notifications.length === 0) {
 				return [];
@@ -162,14 +151,6 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			}
 
 			groupedNotifications = groupedNotifications.slice(0, ps.limit);
-			const noteIds = groupedNotifications
-				.filter((notification): notification is FilterUnionByProperty<MiNotification, 'type', 'mention' | 'reply' | 'quote' | 'edited'> => ['mention', 'reply', 'quote', 'edited'].includes(notification.type))
-				.map(notification => notification.noteId!);
-
-			if (noteIds.length > 0) {
-				const notes = await this.notesRepository.findBy({ id: In(noteIds) });
-				this.noteReadService.read(me.id, notes);
-			}
 
 			return await this.notificationEntityService.packGroupedMany(groupedNotifications, me.id);
 		});
diff --git a/packages/backend/src/server/api/endpoints/i/notifications.ts b/packages/backend/src/server/api/endpoints/i/notifications.ts
index 5e97b90f99..f5a48b2f69 100644
--- a/packages/backend/src/server/api/endpoints/i/notifications.ts
+++ b/packages/backend/src/server/api/endpoints/i/notifications.ts
@@ -9,7 +9,6 @@ import { Inject, Injectable } from '@nestjs/common';
 import type { NotesRepository } from '@/models/_.js';
 import { FilterUnionByProperty, notificationTypes, obsoleteNotificationTypes } from '@/types.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
-import { NoteReadService } from '@/core/NoteReadService.js';
 import { NotificationEntityService } from '@/core/entities/NotificationEntityService.js';
 import { NotificationService } from '@/core/NotificationService.js';
 import { DI } from '@/di-symbols.js';
@@ -69,7 +68,6 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private idService: IdService,
 		private notificationEntityService: NotificationEntityService,
 		private notificationService: NotificationService,
-		private noteReadService: NoteReadService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			// includeTypes が空の場合はクエリしない
@@ -84,67 +82,19 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			const includeTypes = ps.includeTypes && ps.includeTypes.filter(type => !(obsoleteNotificationTypes).includes(type as any)) as typeof notificationTypes[number][];
 			const excludeTypes = ps.excludeTypes && ps.excludeTypes.filter(type => !(obsoleteNotificationTypes).includes(type as any)) as typeof notificationTypes[number][];
 
-			let sinceTime = ps.sinceId ? this.idService.parse(ps.sinceId).date.getTime().toString() : null;
-			let untilTime = ps.untilId ? this.idService.parse(ps.untilId).date.getTime().toString() : null;
-
-			let notifications: MiNotification[];
-			for (;;) {
-				let notificationsRes: [id: string, fields: string[]][];
-
-				// sinceidのみの場合は古い順、そうでない場合は新しい順。 QueryService.makePaginationQueryも参照
-				if (sinceTime && !untilTime) {
-					notificationsRes = await this.redisClient.xrange(
-						`notificationTimeline:${me.id}`,
-						'(' + sinceTime,
-						'+',
-						'COUNT', ps.limit);
-				} else {
-					notificationsRes = await this.redisClient.xrevrange(
-						`notificationTimeline:${me.id}`,
-						untilTime ? '(' + untilTime : '+',
-						sinceTime ? '(' + sinceTime : '-',
-						'COUNT', ps.limit);
-				}
-
-				if (notificationsRes.length === 0) {
-					return [];
-				}
-
-				notifications = notificationsRes.map(x => JSON.parse(x[1][1])) as MiNotification[];
-
-				if (includeTypes && includeTypes.length > 0) {
-					notifications = notifications.filter(notification => includeTypes.includes(notification.type));
-				} else if (excludeTypes && excludeTypes.length > 0) {
-					notifications = notifications.filter(notification => !excludeTypes.includes(notification.type));
-				}
-
-				if (notifications.length !== 0) {
-					// 通知が１件以上ある場合は返す
-					break;
-				}
-
-				// フィルタしたことで通知が0件になった場合、次のページを取得する
-				if (ps.sinceId && !ps.untilId) {
-					sinceTime = notificationsRes[notificationsRes.length - 1][0];
-				} else {
-					untilTime = notificationsRes[notificationsRes.length - 1][0];
-				}
-			}
+			const notifications = await this.notificationService.getNotifications(me.id, {
+				sinceId: ps.sinceId,
+				untilId: ps.untilId,
+				limit: ps.limit,
+				includeTypes,
+				excludeTypes,
+			});
 
 			// Mark all as read
 			if (ps.markAsRead) {
 				this.notificationService.readAllNotification(me.id);
 			}
 
-			const noteIds = notifications
-				.filter((notification): notification is FilterUnionByProperty<MiNotification, 'type', 'mention' | 'reply' | 'quote' | 'edited'> => ['mention', 'reply', 'quote', 'edited'].includes(notification.type))
-				.map(notification => notification.noteId);
-
-			if (noteIds.length > 0) {
-				const notes = await this.notesRepository.findBy({ id: In(noteIds) });
-				this.noteReadService.read(me.id, notes);
-			}
-
 			return await this.notificationEntityService.packMany(notifications, me.id);
 		});
 	}
diff --git a/packages/backend/src/server/api/endpoints/i/read-all-unread-notes.ts b/packages/backend/src/server/api/endpoints/i/read-all-unread-notes.ts
deleted file mode 100644
index edf570fcc5..0000000000
--- a/packages/backend/src/server/api/endpoints/i/read-all-unread-notes.ts
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * SPDX-FileCopyrightText: syuilo and misskey-project
- * SPDX-License-Identifier: AGPL-3.0-only
- */
-
-import { Inject, Injectable } from '@nestjs/common';
-import { Endpoint } from '@/server/api/endpoint-base.js';
-import type { NoteUnreadsRepository } from '@/models/_.js';
-import { GlobalEventService } from '@/core/GlobalEventService.js';
-import { DI } from '@/di-symbols.js';
-
-export const meta = {
-	tags: ['account'],
-
-	requireCredential: true,
-
-	kind: 'write:account',
-
-	// 2 calls per second
-	limit: {
-		duration: 1000,
-		max: 2,
-	},
-} as const;
-
-export const paramDef = {
-	type: 'object',
-	properties: {},
-	required: [],
-} as const;
-
-@Injectable()
-export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
-	constructor(
-		@Inject(DI.noteUnreadsRepository)
-		private noteUnreadsRepository: NoteUnreadsRepository,
-
-		private globalEventService: GlobalEventService,
-	) {
-		super(meta, paramDef, async (ps, me) => {
-			// Remove documents
-			await this.noteUnreadsRepository.delete({
-				userId: me.id,
-			});
-
-			// 全て既読になったイベントを発行
-			this.globalEventService.publishMainStream(me.id, 'readAllUnreadMentions');
-			this.globalEventService.publishMainStream(me.id, 'readAllUnreadSpecifiedNotes');
-		});
-	}
-}
diff --git a/packages/backend/src/server/api/endpoints/i/regenerate-token.ts b/packages/backend/src/server/api/endpoints/i/regenerate-token.ts
index 38328bb7d4..4fd6202604 100644
--- a/packages/backend/src/server/api/endpoints/i/regenerate-token.ts
+++ b/packages/backend/src/server/api/endpoints/i/regenerate-token.ts
@@ -3,13 +3,12 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-//import bcrypt from 'bcryptjs';
 import * as argon2 from 'argon2';
 import { Inject, Injectable } from '@nestjs/common';
 import ms from 'ms';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import type { UsersRepository, UserProfilesRepository } from '@/models/_.js';
-import generateUserToken from '@/misc/generate-native-user-token.js';
+import { generateNativeUserToken } from '@/misc/token.js';
 import { GlobalEventService } from '@/core/GlobalEventService.js';
 import { DI } from '@/di-symbols.js';
 
@@ -57,7 +56,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw new Error('incorrect password');
 			}
 
-			const newToken = generateUserToken();
+			const newToken = generateNativeUserToken();
 
 			await this.usersRepository.update(me.id, {
 				token: newToken,
diff --git a/packages/backend/src/server/api/endpoints/i/update-email.ts b/packages/backend/src/server/api/endpoints/i/update-email.ts
index 0be8bfb695..dc07556760 100644
--- a/packages/backend/src/server/api/endpoints/i/update-email.ts
+++ b/packages/backend/src/server/api/endpoints/i/update-email.ts
@@ -5,7 +5,6 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import ms from 'ms';
-//import bcrypt from 'bcryptjs';
 import * as argon2 from 'argon2';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import type { MiMeta, UserProfilesRepository } from '@/models/_.js';
diff --git a/packages/backend/src/server/api/endpoints/i/update.ts b/packages/backend/src/server/api/endpoints/i/update.ts
index f74452e2af..f35e395841 100644
--- a/packages/backend/src/server/api/endpoints/i/update.ts
+++ b/packages/backend/src/server/api/endpoints/i/update.ts
@@ -6,7 +6,6 @@
 import * as mfm from '@transfem-org/sfm-js';
 import { Inject, Injectable } from '@nestjs/common';
 import ms from 'ms';
-import { JSDOM } from 'jsdom';
 import { extractCustomEmojisFromMfm } from '@/misc/extract-custom-emojis-from-mfm.js';
 import { extractHashtags } from '@/misc/extract-hashtags.js';
 import * as Acct from '@/misc/acct.js';
@@ -31,8 +30,10 @@ import { DriveFileEntityService } from '@/core/entities/DriveFileEntityService.j
 import { HttpRequestService } from '@/core/HttpRequestService.js';
 import type { Config } from '@/config.js';
 import { safeForSql } from '@/misc/safe-for-sql.js';
+import { verifyFieldLinks } from '@/misc/verify-field-link.js';
 import { AvatarDecorationService } from '@/core/AvatarDecorationService.js';
 import { notificationRecieveConfig } from '@/models/json-schema/user.js';
+import { userUnsignedFetchOptions } from '@/const.js';
 import { ApiLoggerService } from '../../ApiLoggerService.js';
 import { ApiError } from '../../error.js';
 
@@ -214,6 +215,7 @@ export const paramDef = {
 		autoSensitive: { type: 'boolean' },
 		followingVisibility: { type: 'string', enum: ['public', 'followers', 'private'] },
 		followersVisibility: { type: 'string', enum: ['public', 'followers', 'private'] },
+		chatScope: { type: 'string', enum: ['everyone', 'followers', 'following', 'mutual', 'none'] },
 		pinnedPageId: { type: 'string', format: 'misskey:id', nullable: true },
 		mutedWords: muteWords,
 		hardMutedWords: muteWords,
@@ -235,6 +237,7 @@ export const paramDef = {
 				receiveFollowRequest: notificationRecieveConfig,
 				followRequestAccepted: notificationRecieveConfig,
 				roleAssigned: notificationRecieveConfig,
+				chatRoomInvitationReceived: notificationRecieveConfig,
 				achievementEarned: notificationRecieveConfig,
 				app: notificationRecieveConfig,
 				test: notificationRecieveConfig,
@@ -255,6 +258,11 @@ export const paramDef = {
 			enum: ['default', 'parent', 'defaultParent', 'parentDefault'],
 			nullable: false,
 		},
+		allowUnsignedFetch: {
+			type: 'string',
+			enum: userUnsignedFetchOptions,
+			nullable: false,
+		},
 	},
 } as const;
 
@@ -319,10 +327,16 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			if (ps.listenbrainz !== undefined) profileUpdates.listenbrainz = ps.listenbrainz;
 			if (ps.followingVisibility !== undefined) profileUpdates.followingVisibility = ps.followingVisibility;
 			if (ps.followersVisibility !== undefined) profileUpdates.followersVisibility = ps.followersVisibility;
+			if (ps.chatScope !== undefined) updates.chatScope = ps.chatScope;
 
 			function checkMuteWordCount(mutedWords: (string[] | string)[], limit: number) {
-				// TODO: ちゃんと数える
-				const length = JSON.stringify(mutedWords).length;
+				const length = mutedWords.reduce((sum, word) => {
+					const wordLength = Array.isArray(word)
+						? word.reduce((l, w) => l + w.length, 0)
+						: word.length;
+					return sum + wordLength;
+				}, 0);
+
 				if (length > limit) {
 					throw new ApiError(meta.errors.tooManyMutedWords);
 				}
@@ -519,6 +533,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				profileUpdates.defaultCWPriority = ps.defaultCWPriority;
 			}
 
+			if (ps.allowUnsignedFetch !== undefined) {
+				updates.allowUnsignedFetch = ps.allowUnsignedFetch;
+			}
+
 			//#region emojis/tags
 
 			let emojis = [] as string[];
@@ -574,9 +592,11 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				this.globalEventService.publishInternalEvent('localUserUpdated', { id: user.id });
 			}
 
+			const verified_links = await verifyFieldLinks(newFields, `${this.config.url}/@${user.username}`, this.httpRequestService);
+
 			await this.userProfilesRepository.update(user.id, {
 				...profileUpdates,
-				verifiedLinks: [],
+				verifiedLinks: verified_links,
 			});
 
 			const iObj = await this.userEntityService.pack(user.id, user, {
@@ -598,18 +618,15 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 			// フォロワーにUpdateを配信
 			if (this.userNeedsPublishing(user, updates) || this.profileNeedsPublishing(profile, updatedProfile)) {
-				this.accountUpdateService.publishToFollowers(user.id);
-			}
-
-			const urls = updatedProfile.fields.filter(x => x.value.startsWith('https://'));
-			for (const url of urls) {
-				this.verifyLink(url.value, user);
+				this.accountUpdateService.publishToFollowers(user);
 			}
 
 			return iObj;
 		});
 	}
 
+	// this function is superseded by '@/misc/verify-field-link.ts'
+	/*
 	private async verifyLink(url: string, user: MiLocalUser) {
 		if (!safeForSql(url)) return;
 
@@ -641,6 +658,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			// なにもしない
 		}
 	}
+	*/
 
 	// these two methods need to be kept in sync with
 	// `ApRendererService.renderPerson`
diff --git a/packages/backend/src/server/api/endpoints/invite/create.ts b/packages/backend/src/server/api/endpoints/invite/create.ts
index d661eab364..f607a35515 100644
--- a/packages/backend/src/server/api/endpoints/invite/create.ts
+++ b/packages/backend/src/server/api/endpoints/invite/create.ts
@@ -18,7 +18,7 @@ export const meta = {
 	tags: ['meta'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canInvite',
+	requiredRolePolicy: 'canInvite',
 	kind: 'write:invite-codes',
 
 	errors: {
diff --git a/packages/backend/src/server/api/endpoints/invite/delete.ts b/packages/backend/src/server/api/endpoints/invite/delete.ts
index 408200164c..d15d400e9b 100644
--- a/packages/backend/src/server/api/endpoints/invite/delete.ts
+++ b/packages/backend/src/server/api/endpoints/invite/delete.ts
@@ -14,7 +14,7 @@ export const meta = {
 	tags: ['meta'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canInvite',
+	requiredRolePolicy: 'canInvite',
 	kind: 'write:invite-codes',
 
 	errors: {
diff --git a/packages/backend/src/server/api/endpoints/invite/limit.ts b/packages/backend/src/server/api/endpoints/invite/limit.ts
index 8d92c4957c..150f4de441 100644
--- a/packages/backend/src/server/api/endpoints/invite/limit.ts
+++ b/packages/backend/src/server/api/endpoints/invite/limit.ts
@@ -15,7 +15,7 @@ export const meta = {
 	tags: ['meta'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canInvite',
+	requiredRolePolicy: 'canInvite',
 	kind: 'read:invite-codes',
 
 	res: {
diff --git a/packages/backend/src/server/api/endpoints/invite/list.ts b/packages/backend/src/server/api/endpoints/invite/list.ts
index b63b41edd3..12e3873304 100644
--- a/packages/backend/src/server/api/endpoints/invite/list.ts
+++ b/packages/backend/src/server/api/endpoints/invite/list.ts
@@ -14,7 +14,7 @@ export const meta = {
 	tags: ['meta'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canInvite',
+	requiredRolePolicy: 'canInvite',
 	kind: 'read:invite-codes',
 
 	res: {
diff --git a/packages/backend/src/server/api/endpoints/miauth/gen-token.ts b/packages/backend/src/server/api/endpoints/miauth/gen-token.ts
index c42df7ca80..f962bd49f1 100644
--- a/packages/backend/src/server/api/endpoints/miauth/gen-token.ts
+++ b/packages/backend/src/server/api/endpoints/miauth/gen-token.ts
@@ -7,6 +7,7 @@ import { Inject, Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import type { AccessTokensRepository } from '@/models/_.js';
 import { IdService } from '@/core/IdService.js';
+import { NotificationService } from '@/core/NotificationService.js';
 import { secureRndstr } from '@/misc/secure-rndstr.js';
 import { DI } from '@/di-symbols.js';
 
@@ -56,6 +57,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private accessTokensRepository: AccessTokensRepository,
 
 		private idService: IdService,
+		private notificationService: NotificationService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			// Generate access token
@@ -77,6 +79,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				permission: ps.permission,
 			});
 
+			// アクセストークンが生成されたことを通知
+			this.notificationService.createNotification(me.id, 'createToken', {});
+
 			return {
 				token: accessToken,
 			};
diff --git a/packages/backend/src/server/api/endpoints/notes/bubble-timeline.ts b/packages/backend/src/server/api/endpoints/notes/bubble-timeline.ts
index d36d1dfc15..df030d90aa 100644
--- a/packages/backend/src/server/api/endpoints/notes/bubble-timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/bubble-timeline.ts
@@ -7,8 +7,8 @@ import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
 import ActiveUsersChart from '@/core/chart/charts/active-users.js';
 import { DI } from '@/di-symbols.js';
 import { RoleService } from '@/core/RoleService.js';
-import { ApiError } from '../../error.js';
 import { CacheService } from '@/core/CacheService.js';
+import { ApiError } from '../../error.js';
 
 export const meta = {
 	tags: ['notes'],
@@ -92,11 +92,11 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				.leftJoinAndSelect('reply.user', 'replyUser')
 				.leftJoinAndSelect('renote.user', 'renoteUser');
 
-			if (me) {
-				this.queryService.generateMutedUserQuery(query, me);
-				this.queryService.generateBlockedUserQuery(query, me);
-				this.queryService.generateMutedUserRenotesQueryForNotes(query, me);
-			}
+			this.queryService.generateVisibilityQuery(query, me);
+			this.queryService.generateBlockedHostQueryForNote(query);
+			if (me) this.queryService.generateMutedUserQueryForNotes(query, me);
+			if (me) this.queryService.generateBlockedUserQueryForNotes(query, me);
+			if (me) this.queryService.generateMutedUserRenotesQueryForNotes(query, me);
 
 			if (ps.withFiles) {
 				query.andWhere('note.fileIds != \'{}\'');
diff --git a/packages/backend/src/server/api/endpoints/notes/children.ts b/packages/backend/src/server/api/endpoints/notes/children.ts
index e69ba9be7e..8f19d534d4 100644
--- a/packages/backend/src/server/api/endpoints/notes/children.ts
+++ b/packages/backend/src/server/api/endpoints/notes/children.ts
@@ -79,8 +79,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				.leftJoinAndSelect('renote.user', 'renoteUser');
 
 			this.queryService.generateVisibilityQuery(query, me);
+			this.queryService.generateBlockedHostQueryForNote(query);
 			if (me) {
-				this.queryService.generateBlockedUserQuery(query, me);
+				this.queryService.generateMutedUserQueryForNotes(query, me);
+				this.queryService.generateBlockedUserQueryForNotes(query, me);
 			}
 
 			const notes = await query.limit(ps.limit).getMany();
diff --git a/packages/backend/src/server/api/endpoints/notes/create.test.ts b/packages/backend/src/server/api/endpoints/notes/create.test.ts
index 18d80e867b..545889a7ee 100644
--- a/packages/backend/src/server/api/endpoints/notes/create.test.ts
+++ b/packages/backend/src/server/api/endpoints/notes/create.test.ts
@@ -65,7 +65,7 @@ describe('api:notes/create', () => {
 
 			test('0 characters cw', () => {
 				expect(v({ text: 'Body', cw: '' }))
-					.toBe(INVALID);
+					.toBe(VALID);
 			});
 
 			test('reject only cw', () => {
diff --git a/packages/backend/src/server/api/endpoints/notes/create.ts b/packages/backend/src/server/api/endpoints/notes/create.ts
index b0f32bfda8..3dd90c3dca 100644
--- a/packages/backend/src/server/api/endpoints/notes/create.ts
+++ b/packages/backend/src/server/api/endpoints/notes/create.ts
@@ -159,7 +159,7 @@ export const paramDef = {
 		visibleUserIds: { type: 'array', uniqueItems: true, items: {
 			type: 'string', format: 'misskey:id',
 		} },
-		cw: { type: 'string', nullable: true, minLength: 1 },
+		cw: { type: 'string', nullable: true },
 		localOnly: { type: 'boolean', default: false },
 		reactionAcceptance: { type: 'string', nullable: true, enum: [null, 'likeOnly', 'likeOnlyForRemote', 'nonSensitiveOnly', 'nonSensitiveOnlyForLocalLikeOnlyForRemote'], default: null },
 		noExtractMentions: { type: 'boolean', default: false },
@@ -400,7 +400,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 					text: ps.text ?? undefined,
 					reply,
 					renote,
-					cw: ps.cw,
+					cw: ps.cw || null,
 					localOnly: ps.localOnly,
 					reactionAcceptance: ps.reactionAcceptance,
 					visibility: ps.visibility,
diff --git a/packages/backend/src/server/api/endpoints/notes/edit.ts b/packages/backend/src/server/api/endpoints/notes/edit.ts
index cc2293c5d6..2c01b26584 100644
--- a/packages/backend/src/server/api/endpoints/notes/edit.ts
+++ b/packages/backend/src/server/api/endpoints/notes/edit.ts
@@ -31,13 +31,11 @@ export const meta = {
 
 	res: {
 		type: 'object',
-		optional: false,
-		nullable: false,
+		optional: false, nullable: false,
 		properties: {
 			createdNote: {
 				type: 'object',
-				optional: false,
-				nullable: false,
+				optional: false, nullable: false,
 				ref: 'Note',
 			},
 		},
@@ -209,7 +207,7 @@ export const paramDef = {
 				format: 'misskey:id',
 			},
 		},
-		cw: { type: 'string', nullable: true, minLength: 1 },
+		cw: { type: 'string', nullable: true },
 		localOnly: { type: 'boolean', default: false },
 		reactionAcceptance: { type: 'string', nullable: true, enum: [null, 'likeOnly', 'likeOnlyForRemote', 'nonSensitiveOnly', 'nonSensitiveOnlyForLocalLikeOnlyForRemote'], default: null },
 		noExtractMentions: { type: 'boolean', default: false },
@@ -454,7 +452,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 					text: ps.text ?? undefined,
 					reply,
 					renote,
-					cw: ps.cw,
+					cw: ps.cw || null,
 					localOnly: ps.localOnly,
 					reactionAcceptance: ps.reactionAcceptance,
 					visibility: ps.visibility,
diff --git a/packages/backend/src/server/api/endpoints/notes/featured.ts b/packages/backend/src/server/api/endpoints/notes/featured.ts
index 4853489827..8ab9f72139 100644
--- a/packages/backend/src/server/api/endpoints/notes/featured.ts
+++ b/packages/backend/src/server/api/endpoints/notes/featured.ts
@@ -11,6 +11,9 @@ import { DI } from '@/di-symbols.js';
 import { FeaturedService } from '@/core/FeaturedService.js';
 import { isUserRelated } from '@/misc/is-user-related.js';
 import { CacheService } from '@/core/CacheService.js';
+import { QueryService } from '@/core/QueryService.js';
+import { ApiError } from '@/server/api/error.js';
+import { RoleService } from '@/core/RoleService.js';
 
 export const meta = {
 	tags: ['notes'],
@@ -29,10 +32,19 @@ export const meta = {
 		},
 	},
 
-	// 10 calls per 5 seconds
+	errors: {
+		ltlDisabled: {
+			message: 'Local timeline has been disabled.',
+			code: 'LTL_DISABLED',
+			id: '45a6eb02-7695-4393-b023-dd3be9aaaefd',
+		},
+	},
+
+	// Burst of 10 calls to handle tab reload, then 4/second for refresh
 	limit: {
-		duration: 1000 * 5,
-		max: 10,
+		type: 'bucket',
+		size: 10,
+		dripSize: 4,
 	},
 } as const;
 
@@ -58,8 +70,15 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private cacheService: CacheService,
 		private noteEntityService: NoteEntityService,
 		private featuredService: FeaturedService,
+		private queryService: QueryService,
+		private readonly roleService: RoleService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
+			const policies = await this.roleService.getUserPolicies(me ? me.id : null);
+			if (!policies.ltlAvailable) {
+				throw new ApiError(meta.errors.ltlDisabled);
+			}
+
 			let noteIds: string[];
 			if (ps.channelId) {
 				noteIds = await this.featuredService.getInChannelNotesRanking(ps.channelId, 50);
@@ -98,7 +117,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				.leftJoinAndSelect('note.renote', 'renote')
 				.leftJoinAndSelect('reply.user', 'replyUser')
 				.leftJoinAndSelect('renote.user', 'renoteUser')
-				.leftJoinAndSelect('note.channel', 'channel');
+				.leftJoinAndSelect('note.channel', 'channel')
+				.andWhere('user.isExplorable = TRUE');
+
+			this.queryService.generateBlockedHostQueryForNote(query);
 
 			const notes = (await query.getMany()).filter(note => {
 				if (me && isUserRelated(note, userIdsWhoBlockingMe)) return false;
diff --git a/packages/backend/src/server/api/endpoints/notes/following.ts b/packages/backend/src/server/api/endpoints/notes/following.ts
index 228793fbf6..5f6ee9f903 100644
--- a/packages/backend/src/server/api/endpoints/notes/following.ts
+++ b/packages/backend/src/server/api/endpoints/notes/following.ts
@@ -143,9 +143,15 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				query.andWhere('"user"."isBot" = false');
 			}
 
+			// Hide blocked users / instances
+			query.andWhere('"user"."isSuspended" = false');
+			query.andWhere('("replyUser" IS NULL OR "replyUser"."isSuspended" = false)');
+			query.andWhere('("renoteUser" IS NULL OR "renoteUser"."isSuspended" = false)');
+			this.queryService.generateBlockedHostQueryForNote(query);
+
 			// Respect blocks and mutes
-			this.queryService.generateBlockedUserQuery(query, me);
-			this.queryService.generateMutedUserQuery(query, me);
+			this.queryService.generateBlockedUserQueryForNotes(query, me);
+			this.queryService.generateMutedUserQueryForNotes(query, me);
 
 			// Support pagination
 			this.queryService
diff --git a/packages/backend/src/server/api/endpoints/notes/global-timeline.ts b/packages/backend/src/server/api/endpoints/notes/global-timeline.ts
index 0f2592bd78..e82d9ca7af 100644
--- a/packages/backend/src/server/api/endpoints/notes/global-timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/global-timeline.ts
@@ -76,11 +76,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw new ApiError(meta.errors.gtlDisabled);
 			}
 
-			const [
-				followings,
-			] = me ? await Promise.all([
-				this.cacheService.userFollowingsCache.fetch(me.id),
-			]) : [undefined];
+			const followings = me ? await this.cacheService.userFollowingsCache.fetch(me.id) : {};
 
 			//#region Construct query
 			const query = this.queryService.makePaginationQuery(this.notesRepository.createQueryBuilder('note'),
@@ -93,9 +89,11 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				.leftJoinAndSelect('reply.user', 'replyUser')
 				.leftJoinAndSelect('renote.user', 'renoteUser');
 
+			this.queryService.generateBlockedHostQueryForNote(query);
+
 			if (me) {
-				this.queryService.generateMutedUserQuery(query, me);
-				this.queryService.generateBlockedUserQuery(query, me);
+				this.queryService.generateMutedUserQueryForNotes(query, me);
+				this.queryService.generateBlockedUserQueryForNotes(query, me);
 				this.queryService.generateMutedUserRenotesQueryForNotes(query, me);
 			}
 
diff --git a/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts b/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts
index 3c66154e19..6461a2e33f 100644
--- a/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts
@@ -254,8 +254,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		}
 
 		this.queryService.generateVisibilityQuery(query, me);
-		this.queryService.generateMutedUserQuery(query, me);
-		this.queryService.generateBlockedUserQuery(query, me);
+		this.queryService.generateBlockedHostQueryForNote(query);
+		this.queryService.generateMutedUserQueryForNotes(query, me);
+		this.queryService.generateBlockedUserQueryForNotes(query, me);
 		this.queryService.generateMutedUserRenotesQueryForNotes(query, me);
 
 		if (ps.includeMyRenotes === false) {
diff --git a/packages/backend/src/server/api/endpoints/notes/local-timeline.ts b/packages/backend/src/server/api/endpoints/notes/local-timeline.ts
index 1f986079c2..f55853f3f3 100644
--- a/packages/backend/src/server/api/endpoints/notes/local-timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/local-timeline.ts
@@ -167,8 +167,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			.leftJoinAndSelect('renote.user', 'renoteUser');
 
 		this.queryService.generateVisibilityQuery(query, me);
-		if (me) this.queryService.generateMutedUserQuery(query, me);
-		if (me) this.queryService.generateBlockedUserQuery(query, me);
+		this.queryService.generateBlockedHostQueryForNote(query);
+		if (me) this.queryService.generateMutedUserQueryForNotes(query, me);
+		if (me) this.queryService.generateBlockedUserQueryForNotes(query, me);
 		if (me) this.queryService.generateMutedUserRenotesQueryForNotes(query, me);
 
 		if (ps.withFiles) {
diff --git a/packages/backend/src/server/api/endpoints/notes/mentions.ts b/packages/backend/src/server/api/endpoints/notes/mentions.ts
index 38912421a4..269b57366c 100644
--- a/packages/backend/src/server/api/endpoints/notes/mentions.ts
+++ b/packages/backend/src/server/api/endpoints/notes/mentions.ts
@@ -9,7 +9,6 @@ import type { NotesRepository, FollowingsRepository } from '@/models/_.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { QueryService } from '@/core/QueryService.js';
 import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
-import { NoteReadService } from '@/core/NoteReadService.js';
 import { DI } from '@/di-symbols.js';
 
 export const meta = {
@@ -58,7 +57,6 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 		private noteEntityService: NoteEntityService,
 		private queryService: QueryService,
-		private noteReadService: NoteReadService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const followingQuery = this.followingsRepository.createQueryBuilder('following')
@@ -80,9 +78,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				.leftJoinAndSelect('renote.user', 'renoteUser');
 
 			this.queryService.generateVisibilityQuery(query, me);
-			this.queryService.generateMutedUserQuery(query, me);
+			this.queryService.generateBlockedHostQueryForNote(query);
+			this.queryService.generateMutedUserQueryForNotes(query, me);
 			this.queryService.generateMutedNoteThreadQuery(query, me);
-			this.queryService.generateBlockedUserQuery(query, me);
+			this.queryService.generateBlockedUserQueryForNotes(query, me);
 
 			if (ps.visibility) {
 				query.andWhere('note.visibility = :visibility', { visibility: ps.visibility });
@@ -95,8 +94,6 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 			const mentions = await query.limit(ps.limit).getMany();
 
-			this.noteReadService.read(me.id, mentions);
-
 			return await this.noteEntityService.packMany(mentions, me);
 		});
 	}
diff --git a/packages/backend/src/server/api/endpoints/notes/polls/vote.ts b/packages/backend/src/server/api/endpoints/notes/polls/vote.ts
index a5014a490f..0b318304f3 100644
--- a/packages/backend/src/server/api/endpoints/notes/polls/vote.ts
+++ b/packages/backend/src/server/api/endpoints/notes/polls/vote.ts
@@ -174,7 +174,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			}
 
 			// リモートフォロワーにUpdate配信
-			this.pollService.deliverQuestionUpdate(note.id);
+			this.pollService.deliverQuestionUpdate(note);
 		});
 	}
 }
diff --git a/packages/backend/src/server/api/endpoints/notes/reactions.ts b/packages/backend/src/server/api/endpoints/notes/reactions.ts
index e683cc87bd..f2355518a2 100644
--- a/packages/backend/src/server/api/endpoints/notes/reactions.ts
+++ b/packages/backend/src/server/api/endpoints/notes/reactions.ts
@@ -80,8 +80,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				query.andWhere('reaction.reaction = :type', { type });
 			}
 
-			if (me) this.queryService.generateMutedUserQuery(query, me);
-			if (me) this.queryService.generateBlockedUserQuery(query, me);
+			if (me) this.queryService.generateMutedUserQueryForNotes(query, me);
+			if (me) this.queryService.generateBlockedUserQueryForNotes(query, me);
 
 			const reactions = await query.limit(ps.limit).getMany();
 
diff --git a/packages/backend/src/server/api/endpoints/notes/renotes.ts b/packages/backend/src/server/api/endpoints/notes/renotes.ts
index 15f114266a..0f08cc9cf2 100644
--- a/packages/backend/src/server/api/endpoints/notes/renotes.ts
+++ b/packages/backend/src/server/api/endpoints/notes/renotes.ts
@@ -91,8 +91,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			}
 
 			this.queryService.generateVisibilityQuery(query, me);
-			if (me) this.queryService.generateMutedUserQuery(query, me);
-			if (me) this.queryService.generateBlockedUserQuery(query, me);
+			this.queryService.generateBlockedHostQueryForNote(query);
+			if (me) this.queryService.generateMutedUserQueryForNotes(query, me);
+			if (me) this.queryService.generateBlockedUserQueryForNotes(query, me);
 
 			const renotes = await query.limit(ps.limit).getMany();
 
diff --git a/packages/backend/src/server/api/endpoints/notes/replies.ts b/packages/backend/src/server/api/endpoints/notes/replies.ts
index 3f0a8157c4..0882e19182 100644
--- a/packages/backend/src/server/api/endpoints/notes/replies.ts
+++ b/packages/backend/src/server/api/endpoints/notes/replies.ts
@@ -62,8 +62,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				.leftJoinAndSelect('renote.user', 'renoteUser');
 
 			this.queryService.generateVisibilityQuery(query, me);
-			if (me) this.queryService.generateMutedUserQuery(query, me);
-			if (me) this.queryService.generateBlockedUserQuery(query, me);
+			this.queryService.generateBlockedHostQueryForNote(query);
+			if (me) this.queryService.generateMutedUserQueryForNotes(query, me);
+			if (me) this.queryService.generateBlockedUserQueryForNotes(query, me);
 
 			const timeline = await query.limit(ps.limit).getMany();
 
diff --git a/packages/backend/src/server/api/endpoints/notes/schedule/list.ts b/packages/backend/src/server/api/endpoints/notes/schedule/list.ts
index 4dd3d7a81a..cbf3a961c0 100644
--- a/packages/backend/src/server/api/endpoints/notes/schedule/list.ts
+++ b/packages/backend/src/server/api/endpoints/notes/schedule/list.ts
@@ -100,7 +100,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				id: string;
 				note: {
 					text?: string;
-					cw?: string|null;
+					cw?: string | null;
 					fileIds: string[];
 					visibility: typeof noteVisibilities[number];
 					visibleUsers: Packed<'UserLite'>[];
@@ -133,6 +133,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 						renote, reply,
 						renoteId: item.note.renote,
 						replyId: item.note.reply,
+						poll: item.note.poll ? await this.fillPoll(item.note.poll) : undefined,
 					},
 				};
 			}));
@@ -155,4 +156,21 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		}
 		return null;
 	}
+
+	// Pulled from NoteEntityService and modified to work with MiNoteSchedule
+	// originally planned to use directly from NoteEntityService but since the poll doesn't actually exist yet that doesn't work
+	@bindThis
+	private async fillPoll(poll: { multiple: boolean; choices: string[]; expiresAt: string | null }) {
+		const choices = poll.choices.map(c => ({
+			text: c,
+			votes: 0, // Default to 0 as there will never be any registered votes while scheduled
+			isVoted: false, // Default to false as the author can't vote anyways since the poll does not exist in the repo yet
+		}));
+
+		return {
+			multiple: poll.multiple,
+			expiresAt: poll.expiresAt ? new Date(poll.expiresAt).toISOString() : null,
+			choices,
+		};
+	}
 }
diff --git a/packages/backend/src/server/api/endpoints/notes/search-by-tag.ts b/packages/backend/src/server/api/endpoints/notes/search-by-tag.ts
index 6bba7bf37e..91874a8195 100644
--- a/packages/backend/src/server/api/endpoints/notes/search-by-tag.ts
+++ b/packages/backend/src/server/api/endpoints/notes/search-by-tag.ts
@@ -97,14 +97,11 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			if (!this.serverSettings.enableBotTrending) query.andWhere('user.isBot = FALSE');
 
 			this.queryService.generateVisibilityQuery(query, me);
-			if (me) this.queryService.generateMutedUserQuery(query, me);
-			if (me) this.queryService.generateBlockedUserQuery(query, me);
+			this.queryService.generateBlockedHostQueryForNote(query);
+			if (me) this.queryService.generateMutedUserQueryForNotes(query, me);
+			if (me) this.queryService.generateBlockedUserQueryForNotes(query, me);
 
-			const [
-				followings,
-			] = me ? await Promise.all([
-				this.cacheService.userFollowingsCache.fetch(me.id),
-			]) : [undefined];
+			const followings = me ? await this.cacheService.userFollowingsCache.fetch(me.id) : {};
 
 			try {
 				if (ps.tag) {
diff --git a/packages/backend/src/server/api/endpoints/notes/show.ts b/packages/backend/src/server/api/endpoints/notes/show.ts
index f0c9db38b4..44e7137f29 100644
--- a/packages/backend/src/server/api/endpoints/notes/show.ts
+++ b/packages/backend/src/server/api/endpoints/notes/show.ts
@@ -67,7 +67,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 			this.queryService.generateVisibilityQuery(query, me);
 			if (me) {
-				this.queryService.generateBlockedUserQuery(query, me);
+				this.queryService.generateBlockedUserQueryForNotes(query, me);
 			}
 
 			const note = await query.getOne();
diff --git a/packages/backend/src/server/api/endpoints/notes/thread-muting/create.ts b/packages/backend/src/server/api/endpoints/notes/thread-muting/create.ts
index 732d644a29..29c6aa7434 100644
--- a/packages/backend/src/server/api/endpoints/notes/thread-muting/create.ts
+++ b/packages/backend/src/server/api/endpoints/notes/thread-muting/create.ts
@@ -9,7 +9,6 @@ import type { NotesRepository, NoteThreadMutingsRepository } from '@/models/_.js
 import { IdService } from '@/core/IdService.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { GetterService } from '@/server/api/GetterService.js';
-import { NoteReadService } from '@/core/NoteReadService.js';
 import { DI } from '@/di-symbols.js';
 import { ApiError } from '../../../error.js';
 
@@ -52,7 +51,6 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private noteThreadMutingsRepository: NoteThreadMutingsRepository,
 
 		private getterService: GetterService,
-		private noteReadService: NoteReadService,
 		private idService: IdService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
@@ -69,8 +67,6 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				}],
 			});
 
-			await this.noteReadService.read(me.id, mutedNotes);
-
 			await this.noteThreadMutingsRepository.insert({
 				id: this.idService.gen(),
 				threadId: note.threadId ?? note.id,
diff --git a/packages/backend/src/server/api/endpoints/notes/timeline.ts b/packages/backend/src/server/api/endpoints/notes/timeline.ts
index 5a46f66f9e..a2dfa7fdac 100644
--- a/packages/backend/src/server/api/endpoints/notes/timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/timeline.ts
@@ -209,8 +209,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		}));
 
 		this.queryService.generateVisibilityQuery(query, me);
-		this.queryService.generateMutedUserQuery(query, me);
-		this.queryService.generateBlockedUserQuery(query, me);
+		this.queryService.generateBlockedHostQueryForNote(query);
+		this.queryService.generateMutedUserQueryForNotes(query, me);
+		this.queryService.generateBlockedUserQueryForNotes(query, me);
 		this.queryService.generateMutedUserRenotesQueryForNotes(query, me);
 
 		if (ps.includeMyRenotes === false) {
diff --git a/packages/backend/src/server/api/endpoints/notes/translate.ts b/packages/backend/src/server/api/endpoints/notes/translate.ts
index 61a511510c..a97542c063 100644
--- a/packages/backend/src/server/api/endpoints/notes/translate.ts
+++ b/packages/backend/src/server/api/endpoints/notes/translate.ts
@@ -10,22 +10,28 @@ import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
 import { HttpRequestService } from '@/core/HttpRequestService.js';
 import { GetterService } from '@/server/api/GetterService.js';
 import { RoleService } from '@/core/RoleService.js';
-import { ApiError } from '../../error.js';
-import { MiMeta } from '@/models/_.js';
+import type { MiMeta, MiNote } from '@/models/_.js';
 import { DI } from '@/di-symbols.js';
+import { CacheService } from '@/core/CacheService.js';
+import { hasText } from '@/models/Note.js';
+import { ApiLoggerService } from '@/server/api/ApiLoggerService.js';
+import { ApiError } from '../../error.js';
 
 export const meta = {
 	tags: ['notes'],
 
+	// TODO allow unauthenticated if default template allows?
+	//   Maybe a value 'optional' that allows unauthenticated OR a token w/ appropriate role.
+	//   This will allow unauthenticated requests without leaking post data to restricted clients.
 	requireCredential: true,
 	kind: 'read:account',
 
 	res: {
 		type: 'object',
-		optional: true, nullable: false,
+		optional: false, nullable: false,
 		properties: {
-			sourceLang: { type: 'string' },
-			text: { type: 'string' },
+			sourceLang: { type: 'string', optional: true, nullable: false },
+			text: { type: 'string', optional: true, nullable: false },
 		},
 	},
 
@@ -45,6 +51,11 @@ export const meta = {
 			code: 'CANNOT_TRANSLATE_INVISIBLE_NOTE',
 			id: 'ea29f2ca-c368-43b3-aaf1-5ac3e74bbe5d',
 		},
+		translationFailed: {
+			message: 'Failed to translate note. Please try again later or contact an administrator for assistance.',
+			code: 'TRANSLATION_FAILED',
+			id: '4e7a1a4f-521c-4ba2-b10a-69e5e2987b2f',
+		},
 	},
 
 	// 10 calls per 5 seconds
@@ -73,6 +84,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private getterService: GetterService,
 		private httpRequestService: HttpRequestService,
 		private roleService: RoleService,
+		private readonly cacheService: CacheService,
+		private readonly loggerService: ApiLoggerService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const policies = await this.roleService.getUserPolicies(me.id);
@@ -89,56 +102,110 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw new ApiError(meta.errors.cannotTranslateInvisibleNote);
 			}
 
-			if (note.text == null) {
-				return;
+			if (!hasText(note)) {
+				return {};
 			}
 
-			if (this.serverSettings.deeplAuthKey == null && !this.serverSettings.deeplFreeMode) {
-				throw new ApiError(meta.errors.unavailable);
-			}
-
-			if (this.serverSettings.deeplFreeMode && !this.serverSettings.deeplFreeInstance) {
-				throw new ApiError(meta.errors.unavailable);
-			}
+			const canDeeplFree = this.serverSettings.deeplFreeMode && !!this.serverSettings.deeplFreeInstance;
+			const canDeepl = !!this.serverSettings.deeplAuthKey || canDeeplFree;
+			const canLibre = !!this.serverSettings.libreTranslateURL;
+			if (!canDeepl && !canLibre) throw new ApiError(meta.errors.unavailable);
 
 			let targetLang = ps.targetLang;
 			if (targetLang.includes('-')) targetLang = targetLang.split('-')[0];
 
-			const params = new URLSearchParams();
-			if (this.serverSettings.deeplAuthKey) params.append('auth_key', this.serverSettings.deeplAuthKey);
-			params.append('text', note.text);
-			params.append('target_lang', targetLang);
+			let response = await this.cacheService.getCachedTranslation(note, targetLang);
+			if (!response) {
+				this.loggerService.logger.debug(`Fetching new translation for note=${note.id} lang=${targetLang}`);
+				response = await this.fetchTranslation(note, targetLang);
+				if (!response) {
+					throw new ApiError(meta.errors.translationFailed);
+				}
 
-			const endpoint = this.serverSettings.deeplFreeMode && this.serverSettings.deeplFreeInstance ? this.serverSettings.deeplFreeInstance : this.serverSettings.deeplIsPro ? 'https://api.deepl.com/v2/translate' : 'https://api-free.deepl.com/v2/translate';
+				await this.cacheService.setCachedTranslation(note, targetLang, response);
+			}
+			return response;
+		});
+	}
 
-			const res = await this.httpRequestService.send(endpoint, {
-				method: 'POST',
-				headers: {
-					'Content-Type': 'application/x-www-form-urlencoded',
-					Accept: 'application/json, */*',
-				},
-				body: params.toString(),
-			});
-			if (this.serverSettings.deeplAuthKey) {
-				const json = (await res.json()) as {
-					translations: {
-						detected_source_language: string;
-						text: string;
-					}[];
-				};
+	private async fetchTranslation(note: MiNote & { text: string }, targetLang: string) {
+		// Load-bearing try/catch - removing this will shift indentation and cause ~80 lines of upstream merge conflicts
+		try {
+			// Ignore deeplFreeInstance unless deeplFreeMode is set
+			const deeplFreeInstance = this.serverSettings.deeplFreeMode ? this.serverSettings.deeplFreeInstance : null;
+
+			// DeepL/DeepLX handling
+			if (this.serverSettings.deeplAuthKey || deeplFreeInstance) {
+				const params = new URLSearchParams();
+				if (this.serverSettings.deeplAuthKey) params.append('auth_key', this.serverSettings.deeplAuthKey);
+				params.append('text', note.text);
+				params.append('target_lang', targetLang);
+				const endpoint = deeplFreeInstance ?? this.serverSettings.deeplIsPro ? 'https://api.deepl.com/v2/translate' : 'https://api-free.deepl.com/v2/translate';
+
+				const res = await this.httpRequestService.send(endpoint, {
+					method: 'POST',
+					headers: {
+						'Content-Type': 'application/x-www-form-urlencoded',
+						Accept: 'application/json, */*',
+					},
+					body: params.toString(),
+					timeout: this.serverSettings.translationTimeout,
+				});
+				if (this.serverSettings.deeplAuthKey) {
+					const json = (await res.json()) as {
+						translations: {
+							detected_source_language: string;
+							text: string;
+						}[];
+					};
+
+					return {
+						sourceLang: json.translations[0].detected_source_language,
+						text: json.translations[0].text,
+					};
+				} else {
+					const json = (await res.json()) as {
+						code: number,
+						message: string,
+						data: string,
+						source_lang: string,
+						target_lang: string,
+						alternatives: string[],
+					};
+
+					const languageNames = new Intl.DisplayNames(['en'], {
+						type: 'language',
+					});
+
+					return {
+						sourceLang: languageNames.of(json.source_lang),
+						text: json.data,
+					};
+				}
+			}
+
+			// LibreTranslate handling
+			if (this.serverSettings.libreTranslateURL) {
+				const res = await this.httpRequestService.send(this.serverSettings.libreTranslateURL, {
+					method: 'POST',
+					headers: {
+						'Content-Type': 'application/json',
+						Accept: 'application/json, */*',
+					},
+					body: JSON.stringify({
+						q: note.text,
+						source: 'auto',
+						target: targetLang,
+						format: 'text',
+						api_key: this.serverSettings.libreTranslateKey ?? '',
+					}),
+					timeout: this.serverSettings.translationTimeout,
+				});
 
-				return {
-					sourceLang: json.translations[0].detected_source_language,
-					text: json.translations[0].text,
-				};
-			} else {
 				const json = (await res.json()) as {
-					code: number,
-					message: string,
-					data: string,
-					source_lang: string,
-					target_lang: string,
 					alternatives: string[],
+					detectedLanguage: { [key: string]: string | number },
+					translatedText: string,
 				};
 
 				const languageNames = new Intl.DisplayNames(['en'], {
@@ -146,10 +213,14 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				});
 
 				return {
-					sourceLang: languageNames.of(json.source_lang),
-					text: json.data,
+					sourceLang: languageNames.of(json.detectedLanguage.language as string),
+					text: json.translatedText,
 				};
 			}
-		});
+		} catch (e) {
+			this.loggerService.logger.error('Unhandled error from translation API: ', { e });
+		}
+
+		return null;
 	}
 }
diff --git a/packages/backend/src/server/api/endpoints/notes/unrenote.ts b/packages/backend/src/server/api/endpoints/notes/unrenote.ts
index 58932bd83a..f2a927f3c5 100644
--- a/packages/backend/src/server/api/endpoints/notes/unrenote.ts
+++ b/packages/backend/src/server/api/endpoints/notes/unrenote.ts
@@ -66,6 +66,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				renoteId: note.id,
 			});
 
+			// TODO inline this into the above query
 			for (const note of renotes) {
 				if (ps.quote) {
 					if (note.text) this.noteDeleteService.delete(await this.usersRepository.findOneByOrFail({ id: me.id }), note, false);
diff --git a/packages/backend/src/server/api/endpoints/notes/user-list-timeline.ts b/packages/backend/src/server/api/endpoints/notes/user-list-timeline.ts
index 55cda135e2..60f18a09b0 100644
--- a/packages/backend/src/server/api/endpoints/notes/user-list-timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/user-list-timeline.ts
@@ -190,8 +190,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			}));
 
 		this.queryService.generateVisibilityQuery(query, me);
-		this.queryService.generateMutedUserQuery(query, me);
-		this.queryService.generateBlockedUserQuery(query, me);
+		this.queryService.generateBlockedHostQueryForNote(query);
+		this.queryService.generateMutedUserQueryForNotes(query, me);
+		this.queryService.generateBlockedUserQueryForNotes(query, me);
 		this.queryService.generateMutedUserRenotesQueryForNotes(query, me);
 
 		if (ps.includeMyRenotes === false) {
diff --git a/packages/backend/src/server/api/endpoints/notes/versions.ts b/packages/backend/src/server/api/endpoints/notes/versions.ts
index 9b98d19fb1..1c6f9838f5 100644
--- a/packages/backend/src/server/api/endpoints/notes/versions.ts
+++ b/packages/backend/src/server/api/endpoints/notes/versions.ts
@@ -17,8 +17,25 @@ export const meta = {
 	requireCredential: false,
 
 	res: {
-		type: 'object',
-		optional: false, nullable: false,
+		type: 'array',
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+			properties: {
+				oldDate: {
+					type: 'string',
+					optional: false, nullable: false,
+				},
+				updatedAt: {
+					type: 'string',
+					optional: false, nullable: false,
+				},
+				text: {
+					type: 'string',
+					optional: false, nullable: true,
+				},
+			},
+		},
 	},
 
 	errors: {
@@ -60,13 +77,13 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private queryService: QueryService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			const query = await this.notesRepository.createQueryBuilder('note')
+			const query = this.notesRepository.createQueryBuilder('note')
 				.where('note.id = :noteId', { noteId: ps.noteId })
 				.innerJoinAndSelect('note.user', 'user');
 
 			this.queryService.generateVisibilityQuery(query, me);
 			if (me) {
-				this.queryService.generateBlockedUserQuery(query, me);
+				this.queryService.generateBlockedUserQueryForNotes(query, me);
 			}
 
 			const note = await query.getOne();
@@ -75,6 +92,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw new ApiError(meta.errors.noSuchNote);
 			}
 
+			// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
 			if (note.user!.requireSigninToViewContents && me == null) {
 				throw new ApiError(meta.errors.signinRequired);
 			}
@@ -84,17 +102,17 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw err;
 			});
 
-			let editArray = [];
+			let editArray: { oldDate: string, updatedAt: string, text: string | null }[] = [];
 
 			for (const edit of edits) {
 				editArray.push({
-					oldDate: edit.oldDate as Date | null ?? null,
-					updatedAt: edit.updatedAt,
+					oldDate: (edit.oldDate ?? edit.updatedAt).toISOString(),
+					updatedAt: edit.updatedAt.toISOString(),
 					text: edit.oldText ?? edit.newText ?? null,
 				});
 			}
 
-			editArray = editArray.sort((a, b) => { return new Date(b.oldDate ?? b.updatedAt).getTime() - new Date(a.oldDate ?? a.updatedAt).getTime(); });
+			editArray = editArray.sort((a, b) => { return new Date(b.oldDate).getTime() - new Date(a.oldDate).getTime(); });
 
 			return editArray;
 		});
diff --git a/packages/backend/src/server/api/endpoints/reset-db.ts b/packages/backend/src/server/api/endpoints/reset-db.ts
index bf40e1e3e0..fe23160bb8 100644
--- a/packages/backend/src/server/api/endpoints/reset-db.ts
+++ b/packages/backend/src/server/api/endpoints/reset-db.ts
@@ -6,9 +6,12 @@
 import { Inject, Injectable } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import * as Redis from 'ioredis';
+import { LoggerService } from '@/core/LoggerService.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { DI } from '@/di-symbols.js';
 import { resetDb } from '@/misc/reset-db.js';
+import { MetaService } from '@/core/MetaService.js';
+import { GlobalEventService } from '@/core/GlobalEventService.js';
 
 export const meta = {
 	tags: ['non-productive'],
@@ -42,13 +45,27 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 		@Inject(DI.redis)
 		private redisClient: Redis.Redis,
+
+		private loggerService: LoggerService,
+		private metaService: MetaService,
+		private globalEventService: GlobalEventService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			if (process.env.NODE_ENV !== 'test') throw new Error('NODE_ENV is not a test');
 
-			await redisClient.flushdb();
+			const logger = this.loggerService.getLogger('reset-db');
+			logger.info('---- Resetting database...');
+
+			await this.redisClient.flushdb();
 			await resetDb(this.db);
 
+			// DIコンテナで管理しているmetaのインスタンスには上記のリセット処理が届かないため、
+			// 初期値を流して明示的にリフレッシュする
+			const meta = await this.metaService.fetch(true);
+			this.globalEventService.publishInternalEvent('metaUpdated', { after: meta });
+
+			logger.info('---- Database reset complete.');
+
 			await new Promise(resolve => setTimeout(resolve, 1000));
 		});
 	}
diff --git a/packages/backend/src/server/api/endpoints/reset-password.ts b/packages/backend/src/server/api/endpoints/reset-password.ts
index d9240dec5e..ba0c60f4ec 100644
--- a/packages/backend/src/server/api/endpoints/reset-password.ts
+++ b/packages/backend/src/server/api/endpoints/reset-password.ts
@@ -3,7 +3,6 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-//import bcrypt from 'bcryptjs';
 import * as argon2 from 'argon2';
 import { Inject, Injectable } from '@nestjs/common';
 import type { UserProfilesRepository, PasswordResetRequestsRepository } from '@/models/_.js';
@@ -60,7 +59,6 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			}
 
 			// Generate hash of password
-			//const salt = await bcrypt.genSalt(8);
 			const hash = await argon2.hash(ps.password);
 
 			await this.userProfilesRepository.update(req.userId, {
diff --git a/packages/backend/src/server/api/endpoints/roles/notes.ts b/packages/backend/src/server/api/endpoints/roles/notes.ts
index b3c73e0391..d1c2e4b686 100644
--- a/packages/backend/src/server/api/endpoints/roles/notes.ts
+++ b/packages/backend/src/server/api/endpoints/roles/notes.ts
@@ -108,8 +108,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				.leftJoinAndSelect('renote.user', 'renoteUser');
 
 			this.queryService.generateVisibilityQuery(query, me);
-			this.queryService.generateMutedUserQuery(query, me);
-			this.queryService.generateBlockedUserQuery(query, me);
+			this.queryService.generateBlockedHostQueryForNote(query);
+			this.queryService.generateMutedUserQueryForNotes(query, me);
+			this.queryService.generateBlockedUserQueryForNotes(query, me);
 
 			const notes = await query.getMany();
 			notes.sort((a, b) => a.id > b.id ? -1 : 1);
diff --git a/packages/backend/src/server/api/endpoints/server-info.ts b/packages/backend/src/server/api/endpoints/server-info.ts
index 528de76707..33ef48226d 100644
--- a/packages/backend/src/server/api/endpoints/server-info.ts
+++ b/packages/backend/src/server/api/endpoints/server-info.ts
@@ -66,7 +66,8 @@ export const meta = {
 
 	// 24 calls, then 7 per second-ish (1 for each type of server info graph)
 	limit: {
-		max: 24,
+		type: 'bucket',
+		size: 24,
 		dripSize: 7,
 		dripRate: 900,
 	},
diff --git a/packages/backend/src/server/api/endpoints/sponsors.ts b/packages/backend/src/server/api/endpoints/sponsors.ts
index 401d9292bc..8e1ac749d5 100644
--- a/packages/backend/src/server/api/endpoints/sponsors.ts
+++ b/packages/backend/src/server/api/endpoints/sponsors.ts
@@ -14,6 +14,39 @@ export const meta = {
 	requireCredential: false,
 	requireCredentialPrivateMode: false,
 
+	res: {
+		type: 'object',
+		nullable: false, optional: false,
+		properties: {
+			sponsor_data: {
+				type: 'array',
+				nullable: false, optional: false,
+				items: {
+					type: 'object',
+					nullable: false, optional: false,
+					properties: {
+						name: {
+							type: 'string',
+							nullable: false, optional: false,
+						},
+						image: {
+							type: 'string',
+							nullable: true, optional: false,
+						},
+						website: {
+							type: 'string',
+							nullable: true, optional: false,
+						},
+						profile: {
+							type: 'string',
+							nullable: false, optional: false,
+						},
+					},
+				},
+			},
+		},
+	},
+
 	// 2 calls per second
 	limit: {
 		duration: 1000,
@@ -24,6 +57,7 @@ export const meta = {
 export const paramDef = {
 	type: 'object',
 	properties: {
+		// TODO remove this or make staff-only to prevent DoS
 		forceUpdate: { type: 'boolean', default: false },
 		instance: { type: 'boolean', default: false },
 	},
@@ -35,12 +69,19 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 	constructor(
 		private sponsorsService: SponsorsService,
 	) {
-		super(meta, paramDef, async (ps, me) => {
-			if (ps.instance) {
-				return { sponsor_data: await this.sponsorsService.instanceSponsors(ps.forceUpdate) };
-			} else {
-				return { sponsor_data: await this.sponsorsService.sharkeySponsors(ps.forceUpdate) };
-			}
+		super(meta, paramDef, async (ps) => {
+			const sponsors = ps.instance
+				? await this.sponsorsService.instanceSponsors(ps.forceUpdate)
+				: await this.sponsorsService.sharkeySponsors(ps.forceUpdate);
+
+			return {
+				sponsor_data: sponsors.map(s => ({
+					name: s.name,
+					image: s.image,
+					website: s.website,
+					profile: s.profile,
+				})),
+			};
 		});
 	}
 }
diff --git a/packages/backend/src/server/api/endpoints/users.ts b/packages/backend/src/server/api/endpoints/users.ts
index 089d346cd2..defd38fe96 100644
--- a/packages/backend/src/server/api/endpoints/users.ts
+++ b/packages/backend/src/server/api/endpoints/users.ts
@@ -4,11 +4,14 @@
  */
 
 import { Inject, Injectable } from '@nestjs/common';
-import type { UsersRepository } from '@/models/_.js';
+import { MiFollowing } from '@/models/_.js';
+import type { MiUser, UsersRepository } from '@/models/_.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { QueryService } from '@/core/QueryService.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
 import { DI } from '@/di-symbols.js';
+import { RoleService } from '@/core/RoleService.js';
+import type { SelectQueryBuilder } from 'typeorm';
 
 export const meta = {
 	tags: ['users'],
@@ -25,10 +28,11 @@ export const meta = {
 		},
 	},
 
-	// 2 calls per second
+	// 20 calls, then 4 per second
 	limit: {
-		duration: 1000,
-		max: 2,
+		type: 'bucket',
+		size: 20,
+		dripRate: 250,
 	},
 } as const;
 
@@ -37,7 +41,7 @@ export const paramDef = {
 	properties: {
 		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
 		offset: { type: 'integer', default: 0 },
-		sort: { type: 'string', enum: ['+follower', '-follower', '+createdAt', '-createdAt', '+updatedAt', '-updatedAt'] },
+		sort: { type: 'string', enum: ['+follower', '-follower', '+localFollower', '-localFollower', '+createdAt', '-createdAt', '+updatedAt', '-updatedAt'] },
 		state: { type: 'string', enum: ['all', 'alive'], default: 'all' },
 		origin: { type: 'string', enum: ['combined', 'local', 'remote'], default: 'local' },
 		hostname: {
@@ -58,6 +62,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 		private userEntityService: UserEntityService,
 		private queryService: QueryService,
+		private readonly roleService: RoleService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const query = this.usersRepository.createQueryBuilder('user')
@@ -80,6 +85,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			switch (ps.sort) {
 				case '+follower': query.orderBy('user.followersCount', 'DESC'); break;
 				case '-follower': query.orderBy('user.followersCount', 'ASC'); break;
+				case '+localFollower': this.addLocalFollowers(query); query.orderBy('f."localFollowers"', 'DESC'); break;
+				case '-localFollower': this.addLocalFollowers(query); query.orderBy('f."localFollowers"', 'ASC'); break;
 				case '+createdAt': query.orderBy('user.id', 'DESC'); break;
 				case '-createdAt': query.orderBy('user.id', 'ASC'); break;
 				case '+updatedAt': query.andWhere('user.updatedAt IS NOT NULL').orderBy('user.updatedAt', 'DESC'); break;
@@ -93,9 +100,29 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			query.limit(ps.limit);
 			query.offset(ps.offset);
 
-			const users = await query.getMany();
+			const allUsers = await query.getMany();
+
+			// This is not ideal, for a couple of reasons:
+			// 1. It may return less than "limit" results.
+			// 2. A span of more than "limit" consecutive non-trendable users may cause the pagination to stop early.
+			// Unfortunately, there's no better solution unless we refactor role policies to be persisted to the DB.
+			const usersWithRoles = await Promise.all(allUsers.map(async u => [u, await this.roleService.getUserPolicies(u)] as const));
+			const users = usersWithRoles
+				.filter(([,p]) => p.canTrend)
+				.map(([u]) => u);
 
 			return await this.userEntityService.packMany(users, me, { schema: 'UserDetailed' });
 		});
 	}
+
+	private addLocalFollowers(query: SelectQueryBuilder<MiUser>) {
+		query.innerJoin(qb => {
+			return qb
+				.from(MiFollowing, 'f')
+				.addSelect('f."followeeId"')
+				.addSelect('COUNT(*) FILTER (where f."followerHost" IS NULL)', 'localFollowers')
+				.addSelect('COUNT(*) FILTER (where f."followeeHost" IS NOT NULL)', 'remoteFollowers')
+				.groupBy('"followeeId"');
+		}, 'f', 'user.id = f."followeeId"');
+	}
 }
diff --git a/packages/backend/src/server/api/endpoints/users/featured-notes.ts b/packages/backend/src/server/api/endpoints/users/featured-notes.ts
index e6acae08b1..3fb091cc0e 100644
--- a/packages/backend/src/server/api/endpoints/users/featured-notes.ts
+++ b/packages/backend/src/server/api/endpoints/users/featured-notes.ts
@@ -11,6 +11,7 @@ import { DI } from '@/di-symbols.js';
 import { FeaturedService } from '@/core/FeaturedService.js';
 import { CacheService } from '@/core/CacheService.js';
 import { isUserRelated } from '@/misc/is-user-related.js';
+import { QueryService } from '@/core/QueryService.js';
 
 export const meta = {
 	tags: ['notes'],
@@ -55,6 +56,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private noteEntityService: NoteEntityService,
 		private featuredService: FeaturedService,
 		private cacheService: CacheService,
+		private queryService: QueryService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const userIdsWhoBlockingMe = me ? await this.cacheService.userBlockedCache.fetch(me.id) : new Set<string>();
@@ -91,6 +93,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				.leftJoinAndSelect('renote.user', 'renoteUser')
 				.leftJoinAndSelect('note.channel', 'channel');
 
+			this.queryService.generateBlockedHostQueryForNote(query);
+
 			const notes = (await query.getMany()).filter(note => {
 				if (me && isUserRelated(note, userIdsWhoBlockingMe, false)) return false;
 				if (me && isUserRelated(note, userIdsWhoMeMuting, true)) return false;
diff --git a/packages/backend/src/server/api/endpoints/users/notes.ts b/packages/backend/src/server/api/endpoints/users/notes.ts
index 6416e43ff1..965baa859a 100644
--- a/packages/backend/src/server/api/endpoints/users/notes.ts
+++ b/packages/backend/src/server/api/endpoints/users/notes.ts
@@ -145,6 +145,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				redisTimelines,
 				useDbFallback: true,
 				ignoreAuthorFromMute: true,
+				ignoreAuthorFromInstanceBlock: true,
 				excludeReplies: ps.withChannelNotes && !ps.withReplies, // userTimelineWithChannel may include replies
 				excludeNoFiles: ps.withChannelNotes && ps.withFiles, // userTimelineWithChannel may include notes without files
 				excludePureRenotes: !ps.withRenotes,
@@ -216,9 +217,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		}
 
 		this.queryService.generateVisibilityQuery(query, me);
+		this.queryService.generateBlockedHostQueryForNote(query, true);
 		if (me) {
-			this.queryService.generateMutedUserQuery(query, me, { id: ps.userId });
-			this.queryService.generateBlockedUserQuery(query, me);
+			this.queryService.generateMutedUserQueryForNotes(query, me, { id: ps.userId });
+			this.queryService.generateBlockedUserQueryForNotes(query, me);
 		}
 
 		if (ps.withFiles) {
diff --git a/packages/backend/src/server/api/endpoints/users/reactions.ts b/packages/backend/src/server/api/endpoints/users/reactions.ts
index 49c1190197..56f59bd285 100644
--- a/packages/backend/src/server/api/endpoints/users/reactions.ts
+++ b/packages/backend/src/server/api/endpoints/users/reactions.ts
@@ -108,6 +108,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				.leftJoinAndSelect('reaction.note', 'note');
 
 			this.queryService.generateVisibilityQuery(query, me);
+			this.queryService.generateBlockedHostQueryForNote(query);
 
 			const reactions = (await query
 				.limit(ps.limit)
diff --git a/packages/backend/src/server/api/endpoints/users/recommendation.ts b/packages/backend/src/server/api/endpoints/users/recommendation.ts
index 46af1f38ac..642d788459 100644
--- a/packages/backend/src/server/api/endpoints/users/recommendation.ts
+++ b/packages/backend/src/server/api/endpoints/users/recommendation.ts
@@ -69,7 +69,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 			this.queryService.generateMutedUserQueryForUsers(query, me);
 			this.queryService.generateBlockQueryForUsers(query, me);
-			this.queryService.generateBlockedUserQuery(query, me);
+			this.queryService.generateBlockedUserQueryForNotes(query, me);
 
 			const followingQuery = this.followingsRepository.createQueryBuilder('following')
 				.select('following.followeeId')
diff --git a/packages/backend/src/server/api/endpoints/users/search-by-username-and-host.ts b/packages/backend/src/server/api/endpoints/users/search-by-username-and-host.ts
index fda56ea6fe..f1a0fc5ddb 100644
--- a/packages/backend/src/server/api/endpoints/users/search-by-username-and-host.ts
+++ b/packages/backend/src/server/api/endpoints/users/search-by-username-and-host.ts
@@ -52,7 +52,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private userSearchService: UserSearchService,
 	) {
 		super(meta, paramDef, (ps, me) => {
-			return this.userSearchService.search({
+			return this.userSearchService.searchByUsernameAndHost({
 				username: ps.username,
 				host: ps.host,
 			}, {
diff --git a/packages/backend/src/server/api/endpoints/users/search.ts b/packages/backend/src/server/api/endpoints/users/search.ts
index 2d17c91e1d..138cef2ec5 100644
--- a/packages/backend/src/server/api/endpoints/users/search.ts
+++ b/packages/backend/src/server/api/endpoints/users/search.ts
@@ -3,14 +3,11 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-import { Brackets } from 'typeorm';
 import { Inject, Injectable } from '@nestjs/common';
-import type { UsersRepository, UserProfilesRepository } from '@/models/_.js';
-import type { MiUser } from '@/models/User.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
 import { DI } from '@/di-symbols.js';
-import { sqlLikeEscape } from '@/misc/sql-like-escape.js';
+import { UserSearchService } from '@/core/UserSearchService.js';
 
 export const meta = {
 	tags: ['users'],
@@ -51,79 +48,15 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
-		@Inject(DI.usersRepository)
-		private usersRepository: UsersRepository,
-
-		@Inject(DI.userProfilesRepository)
-		private userProfilesRepository: UserProfilesRepository,
-
 		private userEntityService: UserEntityService,
+		private userSearchService: UserSearchService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			const activeThreshold = new Date(Date.now() - (1000 * 60 * 60 * 24 * 30)); // 30日
-
-			ps.query = ps.query.trim();
-			const isUsername = ps.query.startsWith('@') && !ps.query.includes(' ') && ps.query.indexOf('@', 1) === -1;
-
-			let users: MiUser[] = [];
-
-			const nameQuery = this.usersRepository.createQueryBuilder('user')
-				.where(new Brackets(qb => {
-					qb.where('user.name ILIKE :query', { query: '%' + sqlLikeEscape(ps.query) + '%' });
-
-					if (isUsername) {
-						qb.orWhere('user.usernameLower LIKE :username', { username: sqlLikeEscape(ps.query.replace('@', '').toLowerCase()) + '%' });
-					} else if (this.userEntityService.validateLocalUsername(ps.query)) { // Also search username if it qualifies as username
-						qb.orWhere('user.usernameLower LIKE :username', { username: '%' + sqlLikeEscape(ps.query.toLowerCase()) + '%' });
-					}
-				}))
-				.andWhere(new Brackets(qb => {
-					qb
-						.where('user.updatedAt IS NULL')
-						.orWhere('user.updatedAt > :activeThreshold', { activeThreshold: activeThreshold });
-				}))
-				.andWhere('user.isSuspended = FALSE');
-
-			if (ps.origin === 'local') {
-				nameQuery.andWhere('user.host IS NULL');
-			} else if (ps.origin === 'remote') {
-				nameQuery.andWhere('user.host IS NOT NULL');
-			}
-
-			users = await nameQuery
-				.orderBy('user.updatedAt', 'DESC', 'NULLS LAST')
-				.limit(ps.limit)
-				.offset(ps.offset)
-				.getMany();
-
-			if (users.length < ps.limit) {
-				const profQuery = this.userProfilesRepository.createQueryBuilder('prof')
-					.select('prof.userId')
-					.where('prof.description ILIKE :query', { query: '%' + sqlLikeEscape(ps.query) + '%' });
-
-				if (ps.origin === 'local') {
-					profQuery.andWhere('prof.userHost IS NULL');
-				} else if (ps.origin === 'remote') {
-					profQuery.andWhere('prof.userHost IS NOT NULL');
-				}
-
-				const query = this.usersRepository.createQueryBuilder('user')
-					.where(`user.id IN (${ profQuery.getQuery() })`)
-					.andWhere(new Brackets(qb => {
-						qb
-							.where('user.updatedAt IS NULL')
-							.orWhere('user.updatedAt > :activeThreshold', { activeThreshold: activeThreshold });
-					}))
-					.andWhere('user.isSuspended = FALSE')
-					.setParameters(profQuery.getParameters());
-
-				users = users.concat(await query
-					.orderBy('user.updatedAt', 'DESC', 'NULLS LAST')
-					.limit(ps.limit)
-					.offset(ps.offset)
-					.getMany(),
-				);
-			}
+			const users = await this.userSearchService.search(ps.query.trim(), me?.id ?? null, {
+				offset: ps.offset,
+				limit: ps.limit,
+				origin: ps.origin,
+			});
 
 			return await this.userEntityService.packMany(users, me, { schema: ps.detail ? 'UserDetailed' : 'UserLite' });
 		});
diff --git a/packages/backend/src/server/api/endpoints/users/show.ts b/packages/backend/src/server/api/endpoints/users/show.ts
index 118362149d..7b1c8adfb8 100644
--- a/packages/backend/src/server/api/endpoints/users/show.ts
+++ b/packages/backend/src/server/api/endpoints/users/show.ts
@@ -59,7 +59,8 @@ export const meta = {
 
 	// up to 50 calls @ 4 per second
 	limit: {
-		max: 50,
+		type: 'bucket',
+		size: 50,
 		dripRate: 250,
 	},
 } as const;
diff --git a/packages/backend/src/server/api/endpoints/v2/admin/emoji/list.ts b/packages/backend/src/server/api/endpoints/v2/admin/emoji/list.ts
index 9426318e34..7139715293 100644
--- a/packages/backend/src/server/api/endpoints/v2/admin/emoji/list.ts
+++ b/packages/backend/src/server/api/endpoints/v2/admin/emoji/list.ts
@@ -12,7 +12,7 @@ export const meta = {
 	tags: ['admin'],
 
 	requireCredential: true,
-	requireRolePolicy: 'canManageCustomEmojis',
+	requiredRolePolicy: 'canManageCustomEmojis',
 	kind: 'read:admin:emoji',
 
 	res: {