Disclaimer: Automated heuristics over public release notes and vulnerability databases (OSV / NVD). Can be wrong or incomplete. Always back up first and validate upgrades yourself. Stack Watch does not invent CVE IDs or issue counts. This is an MVP research project, not a live paid service.

Home / Jellyfin / v12.1

Jellyfin v12.1

UPDATE_WITH_CARE

We are pleased to announce the latest stable release of Jellyfin, version 12.1! This minor release brings several bugfixes to improve your Jellyfin experience.

Published: 2026-09-15T01:23:53Z · GitHub release

Summary of changes

## 🚀 Jellyfin Server 12.1 We are pleased to announce the latest stable release of Jellyfin, version 12.1! This minor release brings several bugfixes to improve your Jellyfin experience. As always, please ensure you take a full backup before upgrading! Discuss this release further on our forums. ## Changelog (47) ## 📈 General Changes - Stop resolving items with every field where only stored columns are read [PR #18039], by @Shadowghost - Fix nested unnumbered season folders collapsing onto the first one [PR #18044], by @Shadowghost - Release a folder's children once its subtree has been scanned [PR #17884], by @Shadowghost - Enforce channel mediasource id [PR #18037], by @Shadowghost - Fix Norwegian ratings [PR #18017], by @theguymadmax - Stop the library monitor from refreshing against a disposed host [PR #18020], by @Shadowghost …

Breaking changes

None detected by heuristics.

CVEs linked to this release

None linked from release notes or OSV fixed-in match.

Linked issues / PRs mentioned

Back up first

Always back up first. Stack Watch briefs are automated heuristics over public release notes and vulnerability databases. They can be wrong or incomplete. You are responsible for validating upgrades in your own environment. We never invent CVE IDs or issue counts — if a number is missing, it was not found.