diff --git a/VERSION b/VERSION
index ca222b7..610e287 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.23.0
+0.23.1
diff --git a/frontend/src/lib/releaseNotes.ts b/frontend/src/lib/releaseNotes.ts
index e5585f0..c89c59a 100644
--- a/frontend/src/lib/releaseNotes.ts
+++ b/frontend/src/lib/releaseNotes.ts
@@ -14,6 +14,17 @@ export interface ReleaseEntry {
 }
 
 export const RELEASE_NOTES: ReleaseEntry[] = [
+  {
+    version: "0.23.1",
+    date: "2026-07-05",
+    summary: "Clearer Plex playback errors, and an admin media-mount check.",
+    fixes: [
+      "Plex player: when a video can't start, it now explains why — the media file isn't reachable on the server, or its format needs transcoding — instead of showing “Loading…” forever.",
+    ],
+    features: [
+      "Admins: the Plex “Test connection” now also checks that a real media file is readable through the configured mount, so a missing media mount or a wrong path map is caught immediately.",
+    ],
+  },
   {
     version: "0.23.0",
     date: "2026-07-05",