No commits since 5 days for nixos-unstable and nixos-25.11

Hey, I noticed that the nixos-unstable and nixos-25.11 branches have not received any commits since 5 days. Do you know what could be the cause for this? On https://status.nixos.org/ none of the channels have a build problem.

The release-25.11 branch has commits from today. Why is nixos-25.11 so far behind?

Mainly because building thousands and thousands of NixOS tests takes time, and you redo it often (e.g. on kernel updates). And in the meantime the infra needs to build also other stuff.

5 Likes

nixos-25.11 in particular should update in an hour or two now. For nixos-unstable I’d estimate like two days.

1 Like

Being on a 5 days old commit is pretty common for these channels, by the way, though usually it’s a bit less.

4 Likes

Thanks a lot for your quick replies! Makes total sense. I was simply a bit worried why it takes so long for nixos-* to catch up with release-*.

You can depend on small or even release if you’re okay building more as the tradeoff too (and having fewer tests, in the case of release).