Jellyfin Server/Web release: 12.0 RC4

[theguymadmax]

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. 

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.


Server Changelog: https://github.com/jellyfin/jellyfin/rel.../v12.0-rc4
Web Changelog: https://github.com/jellyfin/jellyfin-web.../v12.0-rc4

[Gabriel Aurelius]

Just asking. This is a womderful product!

Does the development team have a target date or target number of features/bugs to complete prior to the final version? I am relatively new to JF and am simply asking because I don’t know if there is some point that v12 goes live (ie, after RC5).

[1hitsong]

Does the development team have a target date or target number of features/bugs to complete prior to the final version? I am relatively new to JF and am simply asking because I don’t know if there is some point that v12 goes live (ie, after RC5).

The only true answer you'll ever receive is "When it's ready." If someone gives you an answer beyond that, they're making it up.

[jellykrabbypatty]

   

[Iskelderon]

Thanks for doing so much due diligence on this, considering how to the core this release is with all the database restructuring and performance fixes.

[kvoong825]

Take as many RC as needed. I'm running V10.11.11 and it is running fine so no rush until it is ready. Thank to all the hard work to those involved, I have been on projected before and I know the feeling of getting rushed to finish just to finish....

[mtoss]

Just tested RC4 and here are my impressions. For starters the performance is not there when streaming movies or life tv.
I keep downgrading to 10.10.7 backup. This is snappy. Second, and this is my big beef - why transcode streams with HE AAC?

[Kotku]

Had to rebuild my PC, reinstalled this version and "Next Up" doesn't populate.

Installed latest 10.x release and that didn't work either, ungraded back to this and still no joy.

I've played around with every setting I can think of, are there any logs i can send or is there an idiots guide to this aspect (apologies if it's something silly, spent all night fixing an Oracle Grid issue last night and running on fumes.).

Should clarify, this is on the Home Screen, continue watching works, next up appears if I go into the Shows Library and select the Programme, it doesn't on the Home Screen on either AndroidTV client or on the Web Client.


***Update***

Remebered that I hadn't changed over the repository to Unstable and as soon as I did that it started working, hadn't even restarted the service.

Anyway, well done to whoever fixed it (I did nothing).

[pavichokche]

Just tested RC4 and here are my impressions. For starters the performance is not there when streaming movies or life tv.
I keep downgrading to 10.10.7 backup. This is snappy. Second, and this is my big beef - why transcode streams with HE AAC?

When you say the performance isn't there and that 10.10.7 is "snappy" what do you mean exactly? Is there a [longer] delay during some specific action or sequence, or lag during playback or something? I'm just curious so that I can try and do the same comparison between versions.

[JasonThai]

The media scan on 10.10.07 take 2 minutes on RC4 it can take upto 2 hours