diff --git a/CHANGELOG.md b/CHANGELOG.md
index 39d3c7634c..73fda6f7de 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@
 ### General
 - Feat: コンテンツの表示にログインを必須にできるように
 - Feat: 過去のノートを非公開化/フォロワーのみ表示可能にできるように
+- Fix: お知らせ作成時に画像URL入力欄を空欄に変更できないのを修正 ( #14976 )
 - Enhance: 依存関係の更新
 - Enhance: l10nの更新
 
@@ -28,6 +29,7 @@
 - Enhance: 過去に送信したフォローリクエストを確認できるように  
   (Based on https://activitypub.software/TransFem-org/Sharkey/-/merge_requests/663)
 - Enhance: サイドバーを簡単に展開・折りたたみできるように ( #14981 )
+- Enhance: リノートメニューに「リノートの詳細」を追加
 - Enhance: 投稿フォームの設定メニューを改良
   - 投稿フォームをリセットできるように
   - 文字数カウントを復活
@@ -42,6 +44,8 @@
 - Fix: メールアドレス登録有効化時の「完了」ダイアログボックスの表示条件を修正
 - Fix: 画面幅が狭い環境でデザインが崩れる問題を修正  
 	(Cherry-picked from https://github.com/MisskeyIO/misskey/pull/815)
+- Fix: TypeScriptの型チェック対象ファイルを限定してビルドを高速化するように  
+	(Cherry-picked from https://activitypub.software/TransFem-org/Sharkey/-/merge_requests/725)
 
 ### Server
 - Enhance: DockerのNode.jsを22.11.0に更新
diff --git a/locales/index.d.ts b/locales/index.d.ts
index fd8e9c05b5..b69c6d988d 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -2362,6 +2362,10 @@ export interface Locale extends ILocale {
      * 詳細
      */
     "details": string;
+    /**
+     * リノートの詳細
+     */
+    "renoteDetails": string;
     /**
      * 絵文字を選択
      */
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index 05fe5089c9..09deae2ad5 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -586,6 +586,7 @@ masterVolume: "マスター音量"
 notUseSound: "サウンドを出力しない"
 useSoundOnlyWhenActive: "Misskeyがアクティブな時のみサウンドを出力する"
 details: "詳細"
+renoteDetails: "リノートの詳細"
 chooseEmoji: "絵文字を選択"
 unableToProcess: "操作を完了できません"
 recentUsed: "最近使用"
diff --git a/packages/backend/src/core/AnnouncementService.ts b/packages/backend/src/core/AnnouncementService.ts
index d4fcf19439..a9f6731977 100644
--- a/packages/backend/src/core/AnnouncementService.ts
+++ b/packages/backend/src/core/AnnouncementService.ts
@@ -72,7 +72,7 @@ export class AnnouncementService {
 			updatedAt: null,
 			title: values.title,
 			text: values.text,
-			imageUrl: values.imageUrl,
+			imageUrl: values.imageUrl || null,
 			icon: values.icon,
 			display: values.display,
 			forExistingUsers: values.forExistingUsers,
diff --git a/packages/backend/src/server/api/endpoints/admin/announcements/create.ts b/packages/backend/src/server/api/endpoints/admin/announcements/create.ts
index 2dae1df87d..b8bfda73a4 100644
--- a/packages/backend/src/server/api/endpoints/admin/announcements/create.ts
+++ b/packages/backend/src/server/api/endpoints/admin/announcements/create.ts
@@ -55,7 +55,7 @@ export const paramDef = {
 	properties: {
 		title: { type: 'string', minLength: 1 },
 		text: { type: 'string', minLength: 1 },
-		imageUrl: { type: 'string', nullable: true, minLength: 1 },
+		imageUrl: { type: 'string', nullable: true, minLength: 0 },
 		icon: { type: 'string', enum: ['info', 'warning', 'error', 'success'], default: 'info' },
 		display: { type: 'string', enum: ['normal', 'banner', 'dialog'], default: 'normal' },
 		forExistingUsers: { type: 'boolean', default: false },
@@ -76,7 +76,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				updatedAt: null,
 				title: ps.title,
 				text: ps.text,
-				imageUrl: ps.imageUrl,
+				/* eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing -- 空の文字列の場合、nullを渡すようにするため */
+				imageUrl: ps.imageUrl || null,
 				icon: ps.icon,
 				display: ps.display,
 				forExistingUsers: ps.forExistingUsers,
diff --git a/packages/frontend-embed/tsconfig.json b/packages/frontend-embed/tsconfig.json
index 3701343623..45f933dc28 100644
--- a/packages/frontend-embed/tsconfig.json
+++ b/packages/frontend-embed/tsconfig.json
@@ -33,7 +33,7 @@
 			"./node_modules"
 		],
 		"types": [
-			"vite/client",
+			"vite/client"
 		],
 		"lib": [
 			"esnext",
@@ -44,8 +44,9 @@
 	},
 	"compileOnSave": false,
 	"include": [
-		"./**/*.ts",
-		"./**/*.vue"
+		"./src/**/*.ts",
+		"./src/**/*.vue",
+		"./@types/**/*.ts"
 	],
 	"exclude": [
 		".storybook/**/*"
diff --git a/packages/frontend/src/components/MkNote.vue b/packages/frontend/src/components/MkNote.vue
index cf0d0787b1..1a8814b7cb 100644
--- a/packages/frontend/src/components/MkNote.vue
+++ b/packages/frontend/src/components/MkNote.vue
@@ -187,6 +187,7 @@ import MkUrlPreview from '@/components/MkUrlPreview.vue';
 import MkInstanceTicker from '@/components/MkInstanceTicker.vue';
 import { pleaseLogin, type OpenOnRemoteOptions } from '@/scripts/please-login.js';
 import { checkWordMute } from '@/scripts/check-word-mute.js';
+import { notePage } from '@/filters/note.js';
 import { userPage } from '@/filters/user.js';
 import number from '@/filters/number.js';
 import * as os from '@/os.js';
@@ -566,15 +567,24 @@ function showRenoteMenu(): void {
 		};
 	}
 
+	const renoteDetailsMenu: MenuItem = {
+		type: 'link',
+		text: i18n.ts.renoteDetails,
+		icon: 'ti ti-info-circle',
+		to: notePage(note.value),
+	};
+
 	if (isMyRenote) {
 		pleaseLogin({ openOnRemote: pleaseLoginContext.value });
 		os.popupMenu([
+			renoteDetailsMenu,
 			getCopyNoteLinkMenu(note.value, i18n.ts.copyLinkRenote),
 			{ type: 'divider' },
 			getUnrenote(),
 		], renoteTime.value);
 	} else {
 		os.popupMenu([
+			renoteDetailsMenu,
 			getCopyNoteLinkMenu(note.value, i18n.ts.copyLinkRenote),
 			{ type: 'divider' },
 			getAbuseNoteMenu(note.value, i18n.ts.reportAbuseRenote),
diff --git a/packages/frontend/tsconfig.json b/packages/frontend/tsconfig.json
index b88773b598..4e5ca7f559 100644
--- a/packages/frontend/tsconfig.json
+++ b/packages/frontend/tsconfig.json
@@ -45,8 +45,11 @@
 	},
 	"compileOnSave": false,
 	"include": [
-		"./**/*.ts",
-		"./**/*.vue"
+		"./src/**/*.ts",
+		"./src/**/*.vue",
+		"./test/**/*.ts",
+		"./test/**/*.vue",
+		"./@types/**/*.ts"
 	],
 	"exclude": [
 		".storybook/**/*"