diff --git a/apps/app-frontend/src/announcements/catalog.ts b/apps/app-frontend/src/announcements/catalog.ts
index 7be947e..42b6516 100644
--- a/apps/app-frontend/src/announcements/catalog.ts
+++ b/apps/app-frontend/src/announcements/catalog.ts
@@ -32,6 +32,25 @@ export const ANNOUNCEMENT_CHANGE_TYPES: readonly AnnouncementChangeType[] = [
 ]
 
 export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
+	{
+		id: 'launcher-1.0.0-beta15',
+		version: '1.0.0-beta15',
+		publishedAt: '2026-09-26',
+		title: {
+			'en-US': 'Starlight Launcher 1.0.0-beta15',
+			'zh-CN': 'Starlight Launcher 1.0.0-beta15',
+		},
+		changes: {
+			fixed: [
+				{
+					'en-US':
+						'Fixed the launcher crashing on startup in 1.0.0-beta14 by temporarily reverting the built-in updater. The updater will be re-enabled after the crash is resolved.',
+					'zh-CN':
+						'修复 1.0.0-beta14 中启动器一打开就崩溃的问题：暂时回退了内置自动更新。待崩溃问题解决后会重新启用。',
+				},
+			],
+		},
+	},
 	{
 		id: 'launcher-1.0.0-beta14',
 		version: '1.0.0-beta14',
diff --git a/apps/app/src/main.rs b/apps/app/src/main.rs
index 6fc6e81..f4242d4 100644
--- a/apps/app/src/main.rs
+++ b/apps/app/src/main.rs
@@ -569,9 +569,10 @@ fn is_dev() -> bool {
 
 #[tauri::command]
 fn are_updates_enabled() -> bool {
-    // StarLight launcher enables the built-in updater; the endpoint and
-    // signing public key are configured in tauri-release.conf.json.
-    true
+    // Temporarily disabled: enabling the built-in updater causes an immediate
+    // crash on Windows (c0000409) at startup, pending a fix.
+    // StarLight launcher ships without the built-in update checker.
+    false
 }
 
 #[cfg(feature = "updater")]
diff --git a/apps/website/releases/catalog.json b/apps/website/releases/catalog.json
index e1c9c8f..38f8ccd 100644
--- a/apps/website/releases/catalog.json
+++ b/apps/website/releases/catalog.json
@@ -1,6 +1,23 @@
 {
-  "updated_at": "2026-09-25T23:51:11.379Z",
+  "updated_at": "2026-09-26T01:53:59.007Z",
   "announcements": [
+    {
+      "id": "launcher-1.0.0-beta15",
+      "version": "1.0.0-beta15",
+      "publishedAt": "2026-09-26",
+      "title": {
+        "en-US": "Starlight Launcher 1.0.0-beta15",
+        "zh-CN": "Starlight Launcher 1.0.0-beta15"
+      },
+      "changes": {
+        "fixed": [
+          {
+            "en-US": "Fixed the launcher crashing on startup in 1.0.0-beta14 by temporarily reverting the built-in updater. The updater will be re-enabled after the crash is resolved.",
+            "zh-CN": "修复 1.0.0-beta14 中启动器一打开就崩溃的问题：暂时回退了内置自动更新。待崩溃问题解决后会重新启用。"
+          }
+        ]
+      }
+    },
     {
       "id": "launcher-1.0.0-beta14",
       "version": "1.0.0-beta14",