Seerr 3.5.2 ships a batch of Plex, Jellyfin and request fixes

Seerr, the request manager formerly known as Jellyseerr, published version 3.5.2 on November 12, 2026. This is a maintenance release: no new headline features, just a long list of fixes across the API, authentication, scanners, requests and notification agents. The full changelog is on the release page.

What changed

  • Plex and auth: mediaServerType is now set on Plex login for users who already exist, and intermittent plex.tv PIN 404 responses are treated as transient instead of hard failures. Invalid Discover watchlist responses are no longer cached.
  • Jellyfin: episodes are filtered by the requested season ID, season and episode items are handled in the recently added scan, and the TV request modal copes with a 202 response that carries no seasons.
  • Requests and scanners: advanced request permission is now enforced on the API, requests sort by creation date rather than just ID, abandoned seasons are resolved at the end of a scan run, and a request is declined when media resets to UNKNOWN.
  • Watchlist sync: the Plex watchlist sync schedule now uses minute intervals.
  • Other fixes: background cache refresh no longer logs credentials, override rules apply to the requested server, Radarr movie search only starts when the movie is available, YouTube URLs accept a trailing slash, and the Discord, Slack and Telegram notification settings got label and documentation fixes. SQLite table-copy migrations now use literals for new columns.

The release also brings documentation updates (including a clarified AI policy and review times) and testing and CI housekeeping.

Who it affects

Anyone running Seerr in front of Plex or Jellyfin. If you use Plex watchlists, Jellyfin season requests, advanced request permissions or notification webhooks, at least one of these fixes is likely to matter to you. The credential-logging fix is worth noting for anyone who shares logs when asking for support.

Why it matters

Small fixes like these are what keep a request stack predictable. A login that forgets the media server type, a scanner that leaves seasons hanging or a permission that is only enforced in the UI are exactly the kinds of issues that quietly break automation between your users and your library.

Commentary for self-hosters

Treat 3.5.2 as a routine patch: back up your database and config before upgrading, then check that Plex logins, watchlist sync and any advanced request permissions still behave as expected. Because the release touches migrations, don't skip the backup even on a small instance. If you run Plex alongside your media server, our Plex-related tools are built for the same kind of self-hosted setup.

Sources