diff --git a/.config/ci.yml b/.config/ci.yml
index f29ac392d9..d20ede8d35 100644
--- a/.config/ci.yml
+++ b/.config/ci.yml
@@ -171,6 +171,10 @@ id: 'aidx'
 #maxNoteLength: 3000
 # Amount of characters that will be saved for remote notes. Longer notes will be truncated to this length. (minimum: 1)
 #maxRemoteNoteLength: 100000
+# Amount of characters that can be used when writing content warnings. Longer warnings will be rejected. (minimum: 1)
+#maxCwLength: 500
+# Amount of characters that will be saved for remote content warnings. Longer warnings will be truncated to this length. (minimum: 1)
+#maxRemoteCwLength: 5000
 # Amount of characters that can be used when writing media descriptions (alt text). Longer descriptions will be rejected. (minimum: 1)
 #maxAltTextLength: 20000
 # Amount of characters that will be saved for remote media descriptions (alt text). Longer descriptions will be truncated to this length. (minimum: 1)
diff --git a/.config/cypress-devcontainer.yml b/.config/cypress-devcontainer.yml
index 66b5dceac8..d8013a1c95 100644
--- a/.config/cypress-devcontainer.yml
+++ b/.config/cypress-devcontainer.yml
@@ -183,6 +183,10 @@ id: 'aidx'
 #maxNoteLength: 3000
 # Amount of characters that will be saved for remote notes. Longer notes will be truncated to this length. (minimum: 1)
 #maxRemoteNoteLength: 100000
+# Amount of characters that can be used when writing content warnings. Longer warnings will be rejected. (minimum: 1)
+#maxCwLength: 500
+# Amount of characters that will be saved for remote content warnings. Longer warnings will be truncated to this length. (minimum: 1)
+#maxRemoteCwLength: 5000
 # Amount of characters that can be used when writing media descriptions (alt text). Longer descriptions will be rejected. (minimum: 1)
 #maxAltTextLength: 20000
 # Amount of characters that will be saved for remote media descriptions (alt text). Longer descriptions will be truncated to this length. (minimum: 1)
diff --git a/.config/docker_example.yml b/.config/docker_example.yml
index dd8ea1727a..5fac3dc41e 100644
--- a/.config/docker_example.yml
+++ b/.config/docker_example.yml
@@ -254,6 +254,10 @@ id: 'aidx'
 #maxNoteLength: 3000
 # Amount of characters that will be saved for remote notes. Longer notes will be truncated to this length. (minimum: 1)
 #maxRemoteNoteLength: 100000
+# Amount of characters that can be used when writing content warnings. Longer warnings will be rejected. (minimum: 1)
+#maxCwLength: 500
+# Amount of characters that will be saved for remote content warnings. Longer warnings will be truncated to this length. (minimum: 1)
+#maxRemoteCwLength: 5000
 # Amount of characters that can be used when writing media descriptions (alt text). Longer descriptions will be rejected. (minimum: 1)
 #maxAltTextLength: 20000
 # Amount of characters that will be saved for remote media descriptions (alt text). Longer descriptions will be truncated to this length. (minimum: 1)
diff --git a/.config/example.yml b/.config/example.yml
index 8794a25ffb..0062b6670c 100644
--- a/.config/example.yml
+++ b/.config/example.yml
@@ -265,6 +265,10 @@ id: 'aidx'
 #maxNoteLength: 3000
 # Amount of characters that will be saved for remote notes. Longer notes will be truncated to this length. (minimum: 1)
 #maxRemoteNoteLength: 100000
+# Amount of characters that can be used when writing content warnings. Longer warnings will be rejected. (minimum: 1)
+#maxCwLength: 500
+# Amount of characters that will be saved for remote content warnings. Longer warnings will be truncated to this length. (minimum: 1)
+#maxRemoteCwLength: 5000
 # Amount of characters that can be used when writing media descriptions (alt text). Longer descriptions will be rejected. (minimum: 1)
 #maxAltTextLength: 20000
 # Amount of characters that will be saved for remote media descriptions (alt text). Longer descriptions will be truncated to this length. (minimum: 1)
diff --git a/locales/index.d.ts b/locales/index.d.ts
index 535e88f7c7..d1cb1f97ea 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -5353,6 +5353,10 @@ export interface Locale extends ILocale {
          * オンにすると、このお知らせは通知されず、既読にする必要もなくなります。
          */
         "silenceDescription": string;
+        /**
+         * New
+         */
+        "new": string;
     };
     "_initialAccountSetting": {
         /**
@@ -8442,6 +8446,10 @@ export interface Locale extends ILocale {
          * アプリケーションにアクセス許可を与えるには、ログインが必要です。
          */
         "pleaseLogin": string;
+        /**
+         * Allowed
+         */
+        "allowed": string;
     };
     "_antennaSources": {
         /**
@@ -10603,6 +10611,30 @@ export interface Locale extends ILocale {
      * Mutuals
      */
     "mutuals": string;
+    /**
+     * Private account
+     */
+    "isLocked": string;
+    /**
+     * Administrator
+     */
+    "isAdmin": string;
+    /**
+     * Bot user
+     */
+    "isBot": string;
+    /**
+     * Open
+     */
+    "open": string;
+    /**
+     * Destination address
+     */
+    "emailDestination": string;
+    /**
+     * Date
+     */
+    "date": string;
     /**
      * Quoted.
      */
@@ -10964,6 +10996,10 @@ export interface Locale extends ILocale {
      * Blocking you
      */
     "blockingYou": string;
+    /**
+     * Show warning when opening external URLs
+     */
+    "warnExternalUrl": string;
     "_mfm": {
         /**
          * This is not a widespread feature, it may not display properly on most other fedi software, including other Misskey forks
diff --git a/packages/backend/src/config.ts b/packages/backend/src/config.ts
index 19f1d6c066..3dc49c7eb6 100644
--- a/packages/backend/src/config.ts
+++ b/packages/backend/src/config.ts
@@ -73,6 +73,8 @@ type Source = {
 
 	maxFileSize?: number;
 	maxNoteLength?: number;
+	maxCwLength?: number;
+	maxRemoteCwLength?: number;
 	maxRemoteNoteLength?: number;
 	maxAltTextLength?: number;
 	maxRemoteAltTextLength?: number;
@@ -153,6 +155,8 @@ export type Config = {
 	maxFileSize: number;
 	maxNoteLength: number;
 	maxRemoteNoteLength: number;
+	maxCwLength: number;
+	maxRemoteCwLength: number;
 	maxAltTextLength: number;
 	maxRemoteAltTextLength: number;
 	clusterLimit: number | undefined;
@@ -308,6 +312,8 @@ export function loadConfig(): Config {
 		maxFileSize: config.maxFileSize ?? 262144000,
 		maxNoteLength: config.maxNoteLength ?? 3000,
 		maxRemoteNoteLength: config.maxRemoteNoteLength ?? 100000,
+		maxCwLength: config.maxCwLength ?? 500,
+		maxRemoteCwLength: config.maxRemoteCwLength ?? 5000,
 		maxAltTextLength: config.maxAltTextLength ?? 20000,
 		maxRemoteAltTextLength: config.maxRemoteAltTextLength ?? 100000,
 		clusterLimit: config.clusterLimit,
diff --git a/packages/backend/src/core/NoteCreateService.ts b/packages/backend/src/core/NoteCreateService.ts
index 25286992d6..1bc4599a60 100644
--- a/packages/backend/src/core/NoteCreateService.ts
+++ b/packages/backend/src/core/NoteCreateService.ts
@@ -350,9 +350,13 @@ export class NoteCreateService implements OnApplicationShutdown {
 			data.text = null;
 		}
 
+		const maxCwLength = user.host == null
+			? this.config.maxCwLength
+			: this.config.maxRemoteCwLength;
+
 		if (data.cw) {
-			if (data.cw.length > maxTextLength) {
-				data.cw = data.cw.slice(0, maxTextLength);
+			if (data.cw.length > maxCwLength) {
+				data.cw = data.cw.slice(0, maxCwLength);
 			}
 			data.cw = data.cw.trim();
 			if (data.cw === '') {
diff --git a/packages/backend/src/core/NoteEditService.ts b/packages/backend/src/core/NoteEditService.ts
index b1dd32aef8..d31958e5d4 100644
--- a/packages/backend/src/core/NoteEditService.ts
+++ b/packages/backend/src/core/NoteEditService.ts
@@ -380,9 +380,13 @@ export class NoteEditService implements OnApplicationShutdown {
 			data.text = null;
 		}
 
+		const maxCwLength = user.host == null
+			? this.config.maxCwLength
+			: this.config.maxRemoteCwLength;
+
 		if (data.cw) {
-			if (data.cw.length > maxTextLength) {
-				data.cw = data.cw.slice(0, maxTextLength);
+			if (data.cw.length > maxCwLength) {
+				data.cw = data.cw.slice(0, maxCwLength);
 			}
 			data.cw = data.cw.trim();
 			if (data.cw === '') {
diff --git a/packages/backend/src/server/api/endpoints/notes/create.ts b/packages/backend/src/server/api/endpoints/notes/create.ts
index a66395f25c..d1cf0123dc 100644
--- a/packages/backend/src/server/api/endpoints/notes/create.ts
+++ b/packages/backend/src/server/api/endpoints/notes/create.ts
@@ -90,6 +90,12 @@ export const meta = {
 			id: '3ac74a84-8fd5-4bb0-870f-01804f82ce16',
 		},
 
+		maxCwLength: {
+			message: 'You tried posting a content warning which is too long.',
+			code: 'MAX_CW_LENGTH',
+			id: '7004c478-bda3-4b4f-acb2-4316398c9d52',
+		},
+
 		cannotReplyToSpecifiedVisibilityNoteWithExtendedVisibility: {
 			message: 'You cannot reply to a specified visibility note with extended visibility.',
 			code: 'CANNOT_REPLY_TO_SPECIFIED_VISIBILITY_NOTE_WITH_EXTENDED_VISIBILITY',
@@ -250,10 +256,12 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private noteCreateService: NoteCreateService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			const contentLength = (ps.text?.length ?? 0) + (ps.cw?.length ?? 0);
-			if (contentLength > this.config.maxNoteLength) {
+			if (ps.text && ps.text.length > this.config.maxNoteLength) {
 				throw new ApiError(meta.errors.maxLength);
 			}
+			if (ps.cw && ps.cw.length > this.config.maxCwLength) {
+				throw new ApiError(meta.errors.maxCwLength);
+			}
 
 			let visibleUsers: MiUser[] = [];
 			if (ps.visibleUserIds) {
diff --git a/packages/backend/src/server/api/endpoints/notes/edit.ts b/packages/backend/src/server/api/endpoints/notes/edit.ts
index b9be145caf..dc94c78e75 100644
--- a/packages/backend/src/server/api/endpoints/notes/edit.ts
+++ b/packages/backend/src/server/api/endpoints/notes/edit.ts
@@ -86,6 +86,12 @@ export const meta = {
 			id: '3ac74a84-8fd5-4bb0-870f-01804f82ce16',
 		},
 
+		maxCwLength: {
+			message: 'You tried posting a content warning which is too long.',
+			code: 'MAX_CW_LENGTH',
+			id: '7004c478-bda3-4b4f-acb2-4316398c9d52',
+		},
+
 		cannotReplyToSpecifiedVisibilityNoteWithExtendedVisibility: {
 			message: 'You cannot reply to a specified visibility note with extended visibility.',
 			code: 'CANNOT_REPLY_TO_SPECIFIED_VISIBILITY_NOTE_WITH_EXTENDED_VISIBILITY',
@@ -197,7 +203,7 @@ export const paramDef = {
 				format: 'misskey:id',
 			},
 		},
-		cw: { type: 'string', nullable: true, minLength: 1, maxLength: 500 },
+		cw: { type: 'string', nullable: true, minLength: 1 },
 		localOnly: { type: 'boolean', default: false },
 		reactionAcceptance: { type: 'string', nullable: true, enum: [null, 'likeOnly', 'likeOnlyForRemote', 'nonSensitiveOnly', 'nonSensitiveOnlyForLocalLikeOnlyForRemote'], default: null },
 		noExtractMentions: { type: 'boolean', default: false },
@@ -297,10 +303,12 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private noteEditService: NoteEditService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			const contentLength = (ps.text?.length ?? 0) + (ps.cw?.length ?? 0);
-			if (contentLength > this.config.maxNoteLength) {
+			if (ps.text && ps.text.length > this.config.maxNoteLength) {
 				throw new ApiError(meta.errors.maxLength);
 			}
+			if (ps.cw && ps.cw.length > this.config.maxCwLength) {
+				throw new ApiError(meta.errors.maxCwLength);
+			}
 
 			let visibleUsers: MiUser[] = [];
 			if (ps.visibleUserIds) {