Software » Media Center » Jellyfin 10.11.11 Server / 12.0 RC4 Server

12.0 RC4

Jellyfin Server 12.0 RC4
We are pleased to announce the fourth release candidate preview release of Jellyfin 12.0!

This is a preview release, intended for those interested in testing 12.0 before its final public release. We welcome testers to help find as many bugs as we can before the final release.

As always, please ensure you stop your Jellyfin server and take a full backup before upgrading!

A note about versioning
Starting with this release, we are dropping the preceding 10. from our versioning. Thus, 10.11.x -> [10.]12.x = 12.x. The reason is simple: at this point in the project, we don't envision a hard break in the API like we planned way back in the early days, and this version scheme was causing a lot of confusion amongst users about what a "major" release was. For more information, please see the RC1 release notes.

What's new?
The main goal of this release has been performance. 10.11.0 dropped a major backend rewrite, and while it was broadly functional, it had a lot of rough edges. This release seeks to polish out most of those rough edges and bring better performance to all users.

There are many other small fixes, improvements, changes, and translations. See our draft release notes here or below for the full list of pull requests. You can also view the Web side changelog here.

Note: You must be on Jellyfin 10.10.7+ or 10.11.x (ideally, 10.11.11) before upgrading! If you are not, the upgrade will fail. Ensure you upgrade to one of these versions first!

Note: The initial load of Jellyfin 12.x will run a few migrations and will take several minutes. Please be patient and do not interrupt the process. You can leverage the (newly improved!) startup UI on your local network to see specific progress, or off-network to see general progress, by visiting the server URL in your web browser during startup.

Note: If you install the RC, you should disable all external plugins and reinstall using the unstable plugin repository, or plugins may fail to load and cause unintended side effects.

Installing
This preview release is distributed in all our traditional forms, though not automatically via our Apt repository or latest tag.

For all non-Docker environments, you can find the files for manual download in our repository by selecting "Stable Preview" for your OS.
For Docker, you can pull the 12.0-rc4 or preview tags.
What's Changed (since v12.0-rc3)
Update github/codeql-action action to v4.37.3 by @renovate[bot] in #17398
perf: avoid unnecessary list allocation in CheckForIdlePlayback by @mbastian77 in #17411
Drain stderr and stdout concurrently for encoder validation by @gnattu in #17430
Check the "name" tag for audio/subtitle probe to fix MP4 not showing correctly - Fixes issue #17418 by @rwebster85 in #17419
Apply cleaning logic on ForcedSortName by @Shadowghost in #17402
Fix play queue index handling in SyncPlay by @Eneo-org in #17234
Skip ComicInfo parsing if none exists by @Shadowghost in #17423
Avoid NRE when sorting by user-dependent keys without a user by @paoloantinori in #17395
remove ogg from video extensions since it should only be used for audio by @dkanada in #17437
Fix incorrect year on local trailers by @Shadowghost in #17399
Fix hyphenated numbers in episode titles parsed as multi-episodes by @Shadowghost in #17442
Update dependency SharpCompress to 0.50.1 by @renovate[bot] in #17443
Reduce correlated subqueries to improve query performance by @Shadowghost in #17422
Fix series merging by @Shadowghost in #17417
Fix missing collection folder posters after initial scans. by @elio42 in #16409
Fix 3D format detection when the tag is the last token of the path by @TowyTowy in #17310
Update dependency FsCheck.Xunit.v3 to 3.3.4 by @renovate[bot] in #17448
Update danielpalme/ReportGenerator-GitHub-Action action to v5.5.11 by @renovate[bot] in #17459
Update actions/stale action to v11 by @renovate[bot] in #17461
Implement AudioDb artist search by @Shadowghost in #17424
Allow duplicate LinkedChildren for Playlists by @Shadowghost in #17416
Reevaluate pending migrations after each one instead of per stage by @Shadowghost in #17455
Queue person metadata refresh instead of blocking the item request and fix ItemCounts by @Shadowghost in #17460
Fix (Un)Played filter correctness and performance by @Shadowghost in #17463
Skip SIDX in fMP4 HLS segments by @alchemyyy in #17501
Fix storage info lookup for Windows by @theguymadmax in #17500
Add Tmdb missing episode provider by @Shadowghost in #17147
Fix Live TV returning unreachable "server-local" streaming URLs to clients. by @WizardOfYendor1 in #17298
Fix video version links being read from stale serialised item data instead of the LinkedChildren table by @Shadowghost in #17482
Fix AdjacentTo being ignored on non-recursive item queries by @Shadowghost in #17486
Use CleanName when sorting by name by @theguymadmax in #17503
Allow client-rendered graphical subtitles during remux by @altqx in #17512
Fix extras naming and version assignment by @Shadowghost in #17456

12.0 RC3
Jellyfin Server 12.0 RC3
We are pleased to announce the third release candidate preview release of Jellyfin 12.0!

This is a preview release, intended for those interested in testing 12.0 before its final public release. We welcome testers to help find as many bugs as we can before the final release.

As always, please ensure you stop your Jellyfin server and take a full backup before upgrading!

A note about versioning
Starting with this release, we are dropping the preceding 10. from our versioning. Thus, 10.11.x -> [10.]12.x = 12.x. The reason is simple: at this point in the project, we don't envision a hard break in the API like we planned way back in the early days, and this version scheme was causing a lot of confusion amongst users about what a "major" release was. For more information, please see the RC1 release notes.

What's new?
The main goal of this release has been performance. 10.11.0 dropped a major backend rewrite, and while it was broadly functional, it had a lot of rough edges. This release seeks to polish out most of those rough edges and bring better performance to all users.

There are many other small fixes, improvements, changes, and translations. See our draft release notes here or below for the full list of pull requests. You can also view the Web side changelog here.

Note: You must be on Jellyfin 10.10.7+ or 10.11.x (ideally, 10.11.11) before upgrading! If you are not, the upgrade will fail. Ensure you upgrade to one of these versions first!

Note: The initial load of Jellyfin 12.x will run a few migrations and will take several minutes. Please be patient and do not interrupt the process. You can leverage the (newly improved!) startup UI on your local network to see specific progress, or off-network to see general progress, by visiting the server URL in your web browser during startup.

Note: If you install the RC, you should disable all external plugins and reinstall using the unstable plugin repository, or plugins may fail to load and cause unintended side effects.

Installing
This preview release is distributed in all our traditional forms, though not automatically via our Apt repository or latest tag.

For all non-Docker environments, you can find the files for manual download in our repository by selecting "Stable Preview" for your OS.
For Docker, you can pull the 12.0-rc3 or preview tags.
What's Changed (since v12.0-rc2)
Fix Book collections speed issues by @IDisposable in #15954
Rework bitrate reporting by @Shadowghost in #17170
Use Enumerable.LeftJoin for activity log user query by @obrenoalvim in #17175
Fix NullReferenceException in GetStreamingState for closed live streams by @zachhide in #17206
Fix Swedish rating by @theguymadmax in #17209
Close sessions for lost WebSockets to prevent zombie SyncPlay groups by @Eneo-org in #17079
Update Microsoft to 5.6.0 by @renovate[bot] in #17225
Fix folder view by @theguymadmax in #17222
Allow changing capitalization of usernames by @Bond-009 in #17229
Fix ghost entries when deleting library paths by @theguymadmax in #17231
Fix parental rating lookup for multi-rating entries by @theguymadmax in #17239
Fixes for multi version handling by @Shadowghost in #17044
Use InvariantCulture when parsing machine-generated dates by @iderex in #17238
Don't throw on logout if session does not exist by @Shadowghost in #17228
Fix actor images not displayed until clicked by @johnpc in #16668
Update CI dependencies by @renovate[bot] in #17220
Fix Greece parental ratings by @theguymadmax in #17268
support external images for audiobooks by @dkanada in #17287
Check numeric rating value after splitting country code by @theguymadmax in #17273
Fix incorrect protocol used for subtitle charset detection by @theguymadmax in #17306
Fix additional parts for non-admins by @Shadowghost in #17266
Allow SeriesName to be editable from Item Metadata (books) by @jordanmichaelrushing in #17250
Update Microsoft by @renovate[bot] in #17330
Add Novel job mapping to the Writing department by @theguymadmax in #17248
Fix max login attempts by @theguymadmax in #17274
Update dependency dotnet-ef to v10.0.10 by @renovate[bot] in #17331
Limit similar items to user accessible libraries by @Shadowghost in #17337
Add XML docs to DeviceId and remove CS1591 suppression by @mbastian77 in #17338
Add XML docs to provider lookup info types and remove CS1591 suppressions by @mbastian77 in #17339
Add XML docs to small DLNA model types and remove CS1591 suppressions by @mbastian77 in #17340
Add XML docs to small session model types and remove CS1591 suppressions by @mbastian77 in #17344
Add XML docs to small channel types and remove CS1591 suppressions by @mbastian77 in #17343
Revert setting default BaseItemKind for CollectionType by @theguymadmax in #17348
Update github/codeql-action action to v4.37.1 by @renovate[bot] i...

What is Jellyfin?

Jellyfin enables you to collect, manage, and stream your media. Run the Jellyfin server on your system and gain access to the leading free-software entertainment system, bells and whistles included.

Movies
Enjoy your entire movie collection, easy to browse and with beautiful artwork.

Shows
Watch your favorite shows, automatically sorted by season and ready to binge.

Music
Listen to music, your artists and your playlists, at home or on the go.

Live TV & DVR
Watch TV and set automatic recordings to expand your library.

Books
Read your books, comics, and magazines.

Photos
Organize your photos and share memories with your friends and family.

SyncPlay
Sharing a movie night remotely has never been so easy.

Free Software
Jellyfin is Free Software, licensed under the GNU GPL. You can use it, study it, modify it, build it, and distribute it for free, as long as your changes are licensed the same way.

Community Built
The project relies entirely on contributions from volunteers. Want to help out? There’s lots of ways to do so, and you don’t even have to code! See our contribution guide for more details.

No Fees
The Jellyfin server and official clients are free to download, now and always. There are no costs, hidden or otherwise, to use Jellyfin, either for yourself, for your friends, or for your company. All our incidental costs are paid through donations from users like you.

Privacy Focused
Jellyfin has no tracking, phone-home, or central servers collecting your data. We believe in keeping our software open and transparent. We’re also not in the media business, so the only media you see is your own.