diff --git a/package-lock.json b/package-lock.json
index a05ff828c7..0a5be93bbb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -126,7 +126,7 @@
         "@indutny/rezip-electron": "2.0.1",
         "@indutny/symbolicate-mac": "2.3.0",
         "@napi-rs/canvas": "0.1.61",
-        "@signalapp/mock-server": "10.4.0",
+        "@signalapp/mock-server": "10.4.1",
         "@storybook/addon-a11y": "8.4.4",
         "@storybook/addon-actions": "8.4.4",
         "@storybook/addon-controls": "8.4.4",
@@ -6491,9 +6491,9 @@
       }
     },
     "node_modules/@signalapp/mock-server": {
-      "version": "10.4.0",
-      "resolved": "https://registry.npmjs.org/@signalapp/mock-server/-/mock-server-10.4.0.tgz",
-      "integrity": "sha512-Y2Fj2rP8sI/Z8JBjXgJoHO+6VqfORopeFixka11CrxxDBXQWr4u3+P3hsS5wIwwtgcsaXIultRW+kYhbkttRLw==",
+      "version": "10.4.1",
+      "resolved": "https://registry.npmjs.org/@signalapp/mock-server/-/mock-server-10.4.1.tgz",
+      "integrity": "sha512-9aBmFbOx3KfbN4Ptcx5PBRnVnROe6A58rRoErB/w1x+SSW9TjRHZxviJfgNpt9nGUOreryzOBsONSzWBIE12nQ==",
       "dev": true,
       "license": "AGPL-3.0-only",
       "dependencies": {
diff --git a/package.json b/package.json
index 399842d05e..205f883fbf 100644
--- a/package.json
+++ b/package.json
@@ -217,7 +217,7 @@
     "@indutny/rezip-electron": "2.0.1",
     "@indutny/symbolicate-mac": "2.3.0",
     "@napi-rs/canvas": "0.1.61",
-    "@signalapp/mock-server": "10.4.0",
+    "@signalapp/mock-server": "10.4.1",
     "@storybook/addon-a11y": "8.4.4",
     "@storybook/addon-actions": "8.4.4",
     "@storybook/addon-controls": "8.4.4",
diff --git a/ts/CI.ts b/ts/CI.ts
index 0f56f48740..647415b32e 100644
--- a/ts/CI.ts
+++ b/ts/CI.ts
@@ -41,6 +41,7 @@ export type CIType = {
   uploadBackup(): Promise<void>;
   unlink: () => void;
   print: (...args: ReadonlyArray<unknown>) => void;
+  resetReleaseNotesFetcher(): void;
 };
 
 export type GetCIOptionsType = Readonly<{
@@ -181,6 +182,17 @@ export function getCI({ deviceName }: GetCIOptionsType): CIType {
     handleEvent('print', format(...args));
   }
 
+  async function resetReleaseNotesFetcher() {
+    await Promise.all([
+      window.textsecure.storage.put(
+        'releaseNotesVersionWatermark',
+        '7.0.0-alpha.1'
+      ),
+      window.textsecure.storage.put('releaseNotesPreviousManifestHash', ''),
+      window.textsecure.storage.put('releaseNotesNextFetchTime', Date.now()),
+    ]);
+  }
+
   return {
     deviceName,
     getConversationId,
@@ -195,5 +207,6 @@ export function getCI({ deviceName }: GetCIOptionsType): CIType {
     unlink,
     getPendingEventCount,
     print,
+    resetReleaseNotesFetcher,
   };
 }
diff --git a/ts/test-mock/bootstrap.ts b/ts/test-mock/bootstrap.ts
index e368e952cb..365403e78b 100644
--- a/ts/test-mock/bootstrap.ts
+++ b/ts/test-mock/bootstrap.ts
@@ -725,6 +725,7 @@ export class Bootstrap {
       storageProfile: 'mock',
       serverUrl: url,
       storageUrl: url,
+      resourcesUrl: `${url}/updates2`,
       sfuUrl: url,
       cdn: {
         '0': url,
diff --git a/ts/test-mock/release-notes/release_notes_test.ts b/ts/test-mock/release-notes/release_notes_test.ts
new file mode 100644
index 0000000000..41a6bd5363
--- /dev/null
+++ b/ts/test-mock/release-notes/release_notes_test.ts
@@ -0,0 +1,57 @@
+// Copyright 2025 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import createDebug from 'debug';
+import { assert } from 'chai';
+
+import type { App } from '../playwright';
+import { Bootstrap } from '../bootstrap';
+import { MINUTE } from '../../util/durations';
+
+import { SIGNAL_ACI } from '../../types/SignalConversation';
+
+export const debug = createDebug('mock:test:releaseNotes');
+
+describe('release notes', function (this: Mocha.Suite) {
+  let bootstrap: Bootstrap;
+  let app: App;
+  let nextApp: App;
+
+  this.timeout(MINUTE);
+  beforeEach(async () => {
+    bootstrap = new Bootstrap();
+    await bootstrap.init();
+
+    app = await bootstrap.link();
+  });
+
+  afterEach(async function (this: Mocha.Context) {
+    if (!bootstrap) {
+      return;
+    }
+
+    if (nextApp) {
+      await bootstrap.maybeSaveLogs(this.currentTest, nextApp);
+    }
+    await nextApp?.close();
+    await bootstrap.teardown();
+  });
+
+  it('shows release notes', async () => {
+    const firstWindow = await app.getWindow();
+
+    await firstWindow.evaluate('window.SignalCI.resetReleaseNotesFetcher()');
+
+    await app.close();
+
+    nextApp = await bootstrap.startApp();
+
+    const secondWindow = await nextApp.getWindow();
+
+    const leftPane = secondWindow.locator('#LeftPane');
+    const releaseNoteConversation = leftPane.getByTestId(SIGNAL_ACI);
+    await releaseNoteConversation.waitFor();
+
+    assert.isTrue(await releaseNoteConversation.isVisible());
+  });
+});