diff --git a/VERSION b/VERSION
index 8f0916f..4b9fcbe 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.5.0
+0.5.1
diff --git a/frontend/src/lib/releaseNotes.ts b/frontend/src/lib/releaseNotes.ts
index b01edfa..ae13403 100644
--- a/frontend/src/lib/releaseNotes.ts
+++ b/frontend/src/lib/releaseNotes.ts
@@ -14,6 +14,14 @@ export interface ReleaseEntry {
 }
 
 export const RELEASE_NOTES: ReleaseEntry[] = [
+  {
+    version: "0.5.1",
+    date: "2026-06-16",
+    summary: "A clearer message when a video can't play in the in-app player.",
+    fixes: [
+      "When a video can't be played here — some music tracks and other videos have embedding disabled by their owner — the player now shows a clear note and an “Open on YouTube” button instead of a blank error screen.",
+    ],
+  },
   {
     version: "0.5.0",
     date: "2026-06-16",