NixOS 25.05 released

Hey everyone,

we are very pleased to announce the public availability of NixOS 25.05 (the Linux distribution) and Nixpkgs 25.05 (the package set), under the codename “Warbler”.

We saw quite a significant increase of contributors between 24.11 (2669) and 25.05 (2857).
We’re glad to see more contributors with each version which is released and we’d like to thank everyone for participating!

The old release 24.11 “Vicuña” is now officially deprecated and will reach its end-of-life and stop receiving security updates after 2025-06-30.

We will do a release retrospective in about a week. Please join, when you have any suggestions or other types of feedback. The exact time will be planned in the release management matrix room. The URL will be also announced there.

We would like to thank our release editors @getchoo and @NotAShelf for working on the release notes. And special thanks to @Sigmanificient for the release logo!

Enjoy the new release! :tada:

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We are also happy to announce the compatible 25.05 release of the NixOS mailserver project. Development is picking up steam again. Check our release notes for changes in this release cycle.

https://nixos-mailserver.readthedocs.io/en/nixos-25.05/release-notes.html

We thank everyone who contributed to the NixOS 25.05 release. It is a pleasure to build on top of it.

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Did not expect that this early, nice work @leona, @RossComputerGuy and everybody else who’s helped! :heart:

This is a bit funny now though because this weekend there’s a ZHF Hackathon :laughing: 2025-05-24–25 ZHF 25.05 hackathon – OST, Zürich (Rapperswil-Jona)

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should be

Thanks @leona & @RossComputerGuy !

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Congratulations Leona (@leona) and Tristan (@RossComputerGuy)! Another excellent NixOS release!

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Thanks for the hard work everyone! Upgraded already with no issues!

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Great work y’all! Thanks for keeping the train rolling!

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Smooth upgrade as per usual.
Thanks for all your hard work!

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Thanks to everyone who made this happen! Two commands and two edits to my config was all that was needed. Really enjoying NixOS as a Desktop environment.

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We’ll do a release retrospective today 2025-06-01T17:00:00Z in Jitsi Meet. Feel free to join for feedback, suggestions or just interest :slight_smile:

Please use date tags.

2025-06-01T17:00:00Z