Testing 10.9.0

[TheDreadPirate]

Depends on your install type.  If your stable Jellyfin instance is docker, you could simply duplicate your stable instance and change the image pulled to unstable.  It will upgrade that copy with all your playlists and libraries intact.

Also, why not test both?

No, I don't use Docker. I've set up a machine (VM in Proxmox) completely fresh with Debian 12.5 and directly installed Jellyfin-Unstable on it.
My stable version is running on a different VM with Ubuntu 23.04.

The concept is the same then.  Copy these directories from your Ubuntu VM to your Debian VM.

/var/lib/jellyfin
/etc/jellyfin

Optionally you can copy these directories so that Jellyfin doesn't have to regenerate them

/var/cache/jellyfin
/var/log/jellyfin

As long as your media is mounted in the same path in your Debian VM, this should seamlessly upgrade the database and be identical to your stable instance.

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so I installed 10.9.0 to Debian 12 (before I used 10.8.13)
- web version works fine
- Jellyfin on Android phone works fine
- Jellyfin on Android TV does not work - I can not login

[2024-03-27 13:23:05.865 -04:00] [INF] "CustomAuthentication" was not authenticated. Failure message: "Invalid token."
[2024-03-27 13:23:05.870 -04:00] [ERR] Error processing request: "Invalid token". URL "GET" "/socket".

I don't think 0.16.7 is compatible yet.  I recall Niels mentioning that the version he was working was 10.9 compatible.  But that hasn't been released yet.