diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2ad86946b0..98975a4704 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,13 +1,14 @@
-## Unreleased
+## 2025.2.0
 
 ### General
 - Enhance: アンテナでセンシティブなチャンネルのノートを除外できるように ( #14177 )
 
 ### Client
--
+- Fix: 一部環境でセンシティブなファイルを含むノートの非表示が効かない問題 
+- Fix: データセーバー有効時にもユーザーページの「ファイル」タブで画像が読み込まれてしまう問題を修正
 
 ### Server
--
+- Fix: 個別お知らせページのmetaタグ出力の条件が間違っていたのを修正
 
 
 ## 2025.1.0
diff --git a/SECURITY.md b/SECURITY.md
index 04567baf07..19f5f2eea2 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -7,6 +7,11 @@ bug report to the GitHub repository.
 
 Thanks for helping make Misskey safe for everyone.
 
+> [!note]
+> CNA [requires](https://www.cve.org/ResourcesSupport/AllResources/CNARules#section_5-2_Description) that CVEs include a description in English for inclusion in the CVE Catalog.
+> 
+> When creating a security advisory, all content must be written in English (it is acceptable to include a non-English description along with the English one).
+
 ## When create a patch
 
 If you can also create a patch to fix the vulnerability, please create a PR on the private fork.
diff --git a/package.json b/package.json
index bddb4f85a2..db3c492b60 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "misskey",
-	"version": "2025.1.0",
+	"version": "2025.2.0-alpha.0",
 	"codename": "nasubi",
 	"repository": {
 		"type": "git",
diff --git a/packages/backend/src/server/web/ClientServerService.ts b/packages/backend/src/server/web/ClientServerService.ts
index 4c884dd314..f8b3843cac 100644
--- a/packages/backend/src/server/web/ClientServerService.ts
+++ b/packages/backend/src/server/web/ClientServerService.ts
@@ -817,6 +817,7 @@ export class ClientServerService {
 		fastify.get<{ Params: { announcementId: string; } }>('/announcements/:announcementId', async (request, reply) => {
 			const announcement = await this.announcementsRepository.findOneBy({
 				id: request.params.announcementId,
+				userId: IsNull(),
 			});
 
 			if (announcement) {
diff --git a/packages/frontend/src/account.ts b/packages/frontend/src/account.ts
index 36186ecac1..9006150bc8 100644
--- a/packages/frontend/src/account.ts
+++ b/packages/frontend/src/account.ts
@@ -41,6 +41,12 @@ export async function signout() {
 	if (!$i) return;
 
 	waiting();
+	document.cookie.split(';').forEach((cookie) => {
+		const cookieName = cookie.split('=')[0].trim();
+		if (cookieName === 'token') {
+			document.cookie = `${cookieName}=; max-age=0; path=/`;
+		}
+	});
 	miLocalStorage.removeItem('account');
 	await removeAccount($i.id);
 	const accounts = await getAccounts();
@@ -101,6 +107,9 @@ export async function removeAccount(idOrToken: Account['id']) {
 }
 
 function fetchAccount(token: string, id?: string, forceShowDialog?: boolean): Promise<Account> {
+	document.cookie = "token=; path=/; max-age=0";
+	document.cookie = `token=${token}; path=/queue; max-age=86400; SameSite=Strict; Secure`; // bull dashboardの認証とかで使う
+
 	return new Promise((done, fail) => {
 		window.fetch(`${apiUrl}/i`, {
 			method: 'POST',
@@ -213,7 +222,6 @@ export async function login(token: Account['token'], redirect?: string) {
 			throw reason;
 		});
 	miLocalStorage.setItem('account', JSON.stringify(me));
-	document.cookie = `token=${token}; path=/; max-age=31536000`; // bull dashboardの認証とかで使う
 	await addAccount(me.id, token);
 
 	if (redirect) {
diff --git a/packages/frontend/src/components/MkCustomEmojiDetailedDialog.vue b/packages/frontend/src/components/MkCustomEmojiDetailedDialog.vue
index ecbee864dc..e6ab17417d 100644
--- a/packages/frontend/src/components/MkCustomEmojiDetailedDialog.vue
+++ b/packages/frontend/src/components/MkCustomEmojiDetailedDialog.vue
@@ -57,7 +57,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 <script lang="ts" setup>
 import * as Misskey from 'misskey-js';
-import { defineProps, shallowRef } from 'vue';
+import { shallowRef } from 'vue';
 import MkLink from '@/components/MkLink.vue';
 import { i18n } from '@/i18n.js';
 import MkModalWindow from '@/components/MkModalWindow.vue';
diff --git a/packages/frontend/src/components/MkDriveFileThumbnail.vue b/packages/frontend/src/components/MkDriveFileThumbnail.vue
index 874d9b04cf..6e0ae36880 100644
--- a/packages/frontend/src/components/MkDriveFileThumbnail.vue
+++ b/packages/frontend/src/components/MkDriveFileThumbnail.vue
@@ -18,7 +18,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 		:alt="file.name"
 		:title="file.name"
 		:cover="fit !== 'contain'"
-		:forceBlurHash="forceBlurhash"
+		:forceBlurhash="forceBlurhash"
 	/>
 	<i v-else-if="is === 'image'" class="ti ti-photo" :class="$style.icon"></i>
 	<i v-else-if="is === 'video'" class="ti ti-video" :class="$style.icon"></i>
diff --git a/packages/frontend/src/components/MkNote.vue b/packages/frontend/src/components/MkNote.vue
index 52d0485743..a23ff9b48e 100644
--- a/packages/frontend/src/components/MkNote.vue
+++ b/packages/frontend/src/components/MkNote.vue
@@ -304,16 +304,16 @@ function checkMute(noteToCheck: Misskey.entities.Note, mutedWords: Array<string
 function checkMute(noteToCheck: Misskey.entities.Note, mutedWords: Array<string | string[]> | undefined | null, checkOnly: false): Array<string | string[]> | false | 'sensitiveMute';
 */
 function checkMute(noteToCheck: Misskey.entities.Note, mutedWords: Array<string | string[]> | undefined | null, checkOnly = false): Array<string | string[]> | false | 'sensitiveMute' {
-	if (mutedWords == null) return false;
+	if (mutedWords != null) {
+		const result = checkWordMute(noteToCheck, $i, mutedWords);
+		if (Array.isArray(result)) return result;
 
-	const result = checkWordMute(noteToCheck, $i, mutedWords);
-	if (Array.isArray(result)) return result;
+		const replyResult = noteToCheck.reply && checkWordMute(noteToCheck.reply, $i, mutedWords);
+		if (Array.isArray(replyResult)) return replyResult;
 
-	const replyResult = noteToCheck.reply && checkWordMute(noteToCheck.reply, $i, mutedWords);
-	if (Array.isArray(replyResult)) return replyResult;
-
-	const renoteResult = noteToCheck.renote && checkWordMute(noteToCheck.renote, $i, mutedWords);
-	if (Array.isArray(renoteResult)) return renoteResult;
+		const renoteResult = noteToCheck.renote && checkWordMute(noteToCheck.renote, $i, mutedWords);
+		if (Array.isArray(renoteResult)) return renoteResult;
+	}
 
 	if (checkOnly) return false;
 
diff --git a/packages/frontend/src/components/MkNoteMediaGrid.vue b/packages/frontend/src/components/MkNoteMediaGrid.vue
index 520421bfb7..bf105c3c27 100644
--- a/packages/frontend/src/components/MkNoteMediaGrid.vue
+++ b/packages/frontend/src/components/MkNoteMediaGrid.vue
@@ -6,7 +6,12 @@ SPDX-License-Identifier: AGPL-3.0-only
 <template>
 	<template v-for="file in note.files">
 		<div
-			v-if="(defaultStore.state.nsfw === 'force' || file.isSensitive) && defaultStore.state.nsfw !== 'ignore' && !showingFiles.has(file.id)"
+			v-if="(((
+					(defaultStore.state.nsfw === 'force' || file.isSensitive) &&
+					defaultStore.state.nsfw !== 'ignore'
+				) || (defaultStore.state.dataSaver.media && file.type.startsWith('image/'))) &&
+				!showingFiles.has(file.id)
+			)"
 			:class="[$style.filePreview, { [$style.square]: square }]"
 			@click="showingFiles.add(file.id)"
 		>
@@ -20,7 +25,8 @@ SPDX-License-Identifier: AGPL-3.0-only
 			/>
 			<div :class="$style.sensitive">
 				<div>
-					<div><i class="ti ti-eye-exclamation"></i> {{ i18n.ts.sensitive }}</div>
+					<div v-if="file.isSensitive"><i class="ti ti-eye-exclamation"></i> {{ i18n.ts.sensitive }}{{ defaultStore.state.dataSaver.media && file.size ? ` (${bytes(file.size)})` : '' }}</div>
+					<div v-else><i class="ti ti-photo"></i> {{ defaultStore.state.dataSaver.media && file.size ? bytes(file.size) : i18n.ts.image }}</div>
 					<div>{{ i18n.ts.clickToShow }}</div>
 				</div>
 			</div>
@@ -43,6 +49,7 @@ import { notePage } from '@/filters/note.js';
 import { i18n } from '@/i18n.js';
 import * as Misskey from 'misskey-js';
 import { defaultStore } from '@/store.js';
+import bytes from '@/filters/bytes.js';
 
 import MkDriveFileThumbnail from '@/components/MkDriveFileThumbnail.vue';
 
@@ -91,6 +98,9 @@ const showingFiles = ref<Set<string>>(new Set());
 	display: grid;
   place-items: center;
 	font-size: 0.8em;
+	text-align: center;
+	padding: 8px;
+	box-sizing: border-box;
 	color: #fff;
 	background: rgba(0, 0, 0, 0.5);
 	backdrop-filter: blur(5px);
diff --git a/packages/frontend/src/components/MkRoleSelectDialog.vue b/packages/frontend/src/components/MkRoleSelectDialog.vue
index 67a7a3f752..32f35ed5ad 100644
--- a/packages/frontend/src/components/MkRoleSelectDialog.vue
+++ b/packages/frontend/src/components/MkRoleSelectDialog.vue
@@ -43,7 +43,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script setup lang="ts">
-import { computed, defineProps, ref, toRefs } from 'vue';
+import { computed, ref, toRefs } from 'vue';
 import * as Misskey from 'misskey-js';
 import { i18n } from '@/i18n.js';
 import MkButton from '@/components/MkButton.vue';
diff --git a/packages/misskey-js/package.json b/packages/misskey-js/package.json
index 9d48531c48..667af78ce0 100644
--- a/packages/misskey-js/package.json
+++ b/packages/misskey-js/package.json
@@ -1,7 +1,7 @@
 {
 	"type": "module",
 	"name": "misskey-js",
-	"version": "2025.1.0",
+	"version": "2025.2.0-alpha.0",
 	"description": "Misskey SDK for JavaScript",
 	"license": "MIT",
 	"main": "./built/index.js",