You can find more details about and discuss this release on the official forums.
As always, please ensure you stop your Jellyfin server and take a full backup of your metadata/configs before upgrading!
🚀 Jellyfin Server 10.11.5
📈 General Changes
Fix unnecessary database JOINs in ApplyNavigations [PR #15666], by @andrewrabert
Skip invalid ignore rules [PR #15746], by @Shadowghost
Fix backdrop images being deleted when stored with media [PR #15766], by @theguymadmax
Fix NullReferenceException in ApplyOrder method [PR #15768], by @theguymadmax
Fix AV1 decoding hang regression on RK3588 [PR #15776], by @nyanmisaka
Fix collections display order [PR #15767], by @theguymadmax
Fix parental rating filtering with sub-scores [PR #15786], by @theguymadmax
Fix case sensitivity edge case [PR #15752], by @Collin-Swish
Fix trickplay images using wrong item on alternate versions [PR #15757], by @theguymadmax
Fix blocking in async context in LimitedConcurrencyLibraryScheduler [PR #15662], by @SapientGuardian
Use original name for MusicAritist matching [PR #15689], by @gnattu
Backport dependencies [PR #15723], by @Shadowghost
Fix symlinked file size [PR #15681], by @ivanjx
Fix ItemAdded event triggering when updating metadata [PR #15680], by @theguymadmax
Fix: Add .ts fallback for video streams to prevent crash [PR #15690], by @martenumberto
Fix stack overflow during scan (#15000) [PR #15698], by @myzhysz
Fix the empty output of trickplay on RK3576 [PR #15670], by @nyanmisaka
🚀 Jellyfin Web 10.11.5
🏗️ Enhancements
Add hevc level 6.2 check [PR #7392], by @imtsuki
Add help link to backups page [PR #7380], by @theguymadmax
📈 General Changes
Fix browser detection overwrites [PR #7411], by @thornbill
Fix the return value for 'behavior' property [PR #7415], by @dmitrylyzo
Fix subtitles need to be uploaded twice [PR #7409], by @shempignon
Fix card actions in experimental layout [PR #7387], by @thornbill
Bind PlayerChange before handlers to report correct isLocalPlayer [PR #7376], by @sildur
Fix duplicate years due to type mismatch [PR #7379], by @Collin-Swish
Fix card and logo position for rtl languages [PR #7378], by @thornbill
I will say, if anyone is waiting for things to settle down since 10.11.0, I recently did a migration from 10.10.7 to 10.11.4. That direct upgrade didn’t result in nearly as much of a headache as the initial 10.11.y upgrade. You still need to coax the upgrade with a library scan and missing metadata scan, but it’s actually fine now.