# Nix Releases

**URL:** https://discourse.nixos.org/c/announcements/nix-releases/51.md

[Latest](https://discourse.nixos.org/latest.md) · [Categories](https://discourse.nixos.org/categories.md)

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## [About the Nix Releases category](https://discourse.nixos.org/t/about-the-nix-releases-category/32237)

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**Author:** [@ryantm](https://discourse.nixos.org/u/ryantm)\
**Replies:** 0

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New Nix releases are announced here. Feel free to ask questions or give feedback about the changes. Subscribe to this category if you want to stay up to date.

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## [Nix 2.35.0 released](https://discourse.nixos.org/t/nix-2-35-0-released/78914)

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**Author:** [@lisanna](https://discourse.nixos.org/u/lisanna)\
**Replies:** 4\
**Last updated:** [July 14, 2026, 8:46am UTC](https://discourse.nixos.org/t/nix-2-35-0-released/78914 "2026-07-14T08:46:25Z")

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On behalf of the Nix team, I am pleased to finally announce the release of Nix 2.35.0. This release contains a good number of new features, bugfixes, and performance improvements, and is available at releases.nixos.org. …

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## [Nix 2.34.0 released](https://discourse.nixos.org/t/nix-2-34-0-released/75818)

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**Author:** [@xokdvium](https://discourse.nixos.org/u/xokdvium)\
**Replies:** 6\
**Last updated:** [March 4, 2026, 4:11pm UTC](https://discourse.nixos.org/t/nix-2-34-0-released/75818 "2026-03-04T16:11:21Z")

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Hi, I’m pleased to announce the release of Nix 2.34.0. It is available from releases.nixos.org. This release includes numerous bugfixes, QoL features and incremental performance improvements. Release notes Highlights …

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## [Nix 2.33.0 released](https://discourse.nixos.org/t/nix-2-33-0-released/73109)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 2\
**Last updated:** [December 17, 2025, 1:40am UTC](https://discourse.nixos.org/t/nix-2-33-0-released/73109 "2025-12-17T01:40:34Z")

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Hi, I’m pleased to announce the availability of Nix 2.33.0. It is available from releases.nixos.org. New features New command nix registry resolve #14595 This command looks up a flake registry input name and returns…

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## [Nix 2.32.0 released](https://discourse.nixos.org/t/nix-2-32-0-released/70528)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 8\
**Last updated:** [October 24, 2025, 11:34pm UTC](https://discourse.nixos.org/t/nix-2-32-0-released/70528 "2025-10-24T23:34:09Z")

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Hi, I’m pleased to announce the availability of Nix 2.32.0. It is available from releases.nixos.org. Release notes Incompatible changes Removed support for daemons and clients older than Nix 2.0 #13951 We have dropp…

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## [Want to beta-test 33% memory improvement in Nix evaluations?](https://discourse.nixos.org/t/want-to-beta-test-33-memory-improvement-in-nix-evaluations/69577)

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**Author:** [@PhilipTaron](https://discourse.nixos.org/u/PhilipTaron)\
**Replies:** 10\
**Last updated:** [October 8, 2025, 9:38pm UTC](https://discourse.nixos.org/t/want-to-beta-test-33-memory-improvement-in-nix-evaluations/69577 "2025-10-08T21:38:08Z")

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Want to beta-test 33% memory improvement in Nix evaluations? Switch your NixOS and Nix configurations to use nixVersions.git. This includes @xokdvium’s excellent work to reduce the memory impact of merging attrsets toget…

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## [Nix 2.31.0 released](https://discourse.nixos.org/t/nix-2-31-0-released/68465)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 3\
**Last updated:** [September 6, 2025, 2:01pm UTC](https://discourse.nixos.org/t/nix-2-31-0-released/68465 "2025-09-06T14:01:25Z")

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Hi, I’m pleased to announce the availability of Nix 2.31.0. It is available from releases.nixos.org. Release notes build-cores = 0 now auto-detects CPU cores #13402 When build-cores is set to 0, Nix now automaticall…

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## [Nix 2.30.0 released](https://discourse.nixos.org/t/nix-2-30-0-released/66449)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 7\
**Last updated:** [July 12, 2025, 12:16pm UTC](https://discourse.nixos.org/t/nix-2-30-0-released/66449 "2025-07-12T12:16:20Z")

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Hi, I’m pleased to announce the availability of Nix 2.30. It is available from releases.nixos.org. Release notes Backward-incompatible changes and deprecations build-dir no longer defaults to $TMPDIR The directory i…

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## [Nix 2.29.0 released](https://discourse.nixos.org/t/nix-2-29-0-released/64609)

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**Author:** [@Mic92](https://discourse.nixos.org/u/Mic92)\
**Replies:** 0\
**Last updated:** [May 22, 2025, 12:56pm UTC](https://discourse.nixos.org/t/nix-2-29-0-released/64609 "2025-05-22T12:56:33Z")

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Hi, I’m pleased to announce the availability of Nix 2.29. It is available from Channels for NixOS project(s) Release notes Release 2.29.0 (2025-05-14) After the special backport-based release of Nix 2.28 (timed to coin…

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## [Nix 2.27.0 released](https://discourse.nixos.org/t/nix-2-27-0-released/62003)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 5\
**Last updated:** [April 14, 2025, 1:20pm UTC](https://discourse.nixos.org/t/nix-2-27-0-released/62003 "2025-04-14T13:20:07Z")

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Hi, I’m pleased to announce the availability of Nix 2.27. It is available from https://releases.nixos.org/?prefix=nix/nix-2.27.0/ . Release notes: inputs.self.submodules flake attribute #12421 Flakes in Git reposit…

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## [Nix 2.28.0 released](https://discourse.nixos.org/t/nix-2-28-0-released/62660)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 0\
**Last updated:** [April 4, 2025, 4:02pm UTC](https://discourse.nixos.org/t/nix-2-28-0-released/62660 "2025-04-04T16:02:33Z")

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Hi, I’m pleased to announce the availability of Nix 2.28. It is available from https://releases.nixos.org/?prefix=nix/nix-2.28.0/ . Release notes This is an atypical release, and for almost all intents and purposes, it…

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## [Nix 2.26 released](https://discourse.nixos.org/t/nix-2-26-released/59211)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 31\
**Last updated:** [February 27, 2025, 11:09am UTC](https://discourse.nixos.org/t/nix-2-26-released/59211 "2025-02-27T11:09:21Z")

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Hi, I’m pleased to announce the availability of Nix 2.26. It is available from https://releases.nixos.org/?prefix=nix/nix-2.26.0/ . Support for relative path inputs #10089 Flakes can now refer to other flakes in the…

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## [Nix 2.25 released](https://discourse.nixos.org/t/nix-2-25-released/55994)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 0\
**Last updated:** [November 13, 2024, 2:25pm UTC](https://discourse.nixos.org/t/nix-2-25-released/55994 "2024-11-13T14:25:01Z")

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Hi, I’m pleased to announce the availability of Nix 2.25. It is available from https://releases.nixos.org/?prefix=nix/nix-2.25.1/ . The most important changes are as follows: New environment variables to override X…

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## [Nix 2.24 released](https://discourse.nixos.org/t/nix-2-24-released/49986)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 10\
**Last updated:** [September 26, 2024, 10:53am UTC](https://discourse.nixos.org/t/nix-2-24-released/49986 "2024-09-26T10:53:48Z")

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Hi, I’m pleased to announce the availability of Nix 2.24.0. It is available from https://releases.nixos.org/?prefix=nix/nix-2.24.0/. The most important changes are as follows: Significant changes Harden user sandbox…

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## [Nix 2.22 released](https://discourse.nixos.org/t/nix-2-22-released/44007)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 1\
**Last updated:** [April 24, 2024, 11:18am UTC](https://discourse.nixos.org/t/nix-2-22-released/44007 "2024-04-24T11:18:07Z")

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Hi, I’m pleased to announce the availability of Nix 2.22.0. It is available from https://releases.nixos.org/?prefix=nix/nix-2.22.0/. The most important changes are listed in the release notes.

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## [Virus detected on NixOS VirtualBox Appliance](https://discourse.nixos.org/t/virus-detected-on-nixos-virtualbox-appliance/43534)

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**Author:** [@goldensignal](https://discourse.nixos.org/u/goldensignal)\
**Replies:** 4\
**Last updated:** [April 17, 2024, 8:46pm UTC](https://discourse.nixos.org/t/virus-detected-on-nixos-virtualbox-appliance/43534 "2024-04-17T20:46:06Z")

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Chrome detected a virus in the dowloaded OVA for VirtualBox

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## [Nix 2.20 released](https://discourse.nixos.org/t/nix-2-20-released/39027)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 14\
**Last updated:** [February 21, 2024, 6:56pm UTC](https://discourse.nixos.org/t/nix-2-20-released/39027 "2024-02-21T18:56:41Z")

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Hi, I’m pleased to announce the availability of Nix 2.20.0. It is available from Download Nix / NixOS | Nix & NixOS and http://releases.nixos.org/?prefix=nix/nix-2.20.0/ . The most important changes are listed in the …

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## [KVM on GitHub Actions](https://discourse.nixos.org/t/kvm-on-github-actions/36199)

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**Author:** [@lucperkins](https://discourse.nixos.org/u/lucperkins)\
**Replies:** 0\
**Last updated:** [November 29, 2023, 2:21pm UTC](https://discourse.nixos.org/t/kvm-on-github-actions/36199 "2023-11-29T14:21:21Z")

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We at DetSys are happy to announce that the Determinate Nix Installer now enables KVM on Linux GitHub Actions runners by default. This means that you can now do things like run NixOS tests on Actions without needing to r…

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## [Nix 2.18 released](https://discourse.nixos.org/t/nix-2-18-released/33249)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 0\
**Last updated:** [September 20, 2023, 3:10pm UTC](https://discourse.nixos.org/t/nix-2-18-released/33249 "2023-09-20T15:10:35Z")

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Hi, I’m pleased to announce the availability of Nix 2.18.0. It is available from Download Nix / NixOS | Nix & NixOS and http://releases.nixos.org/?prefix=nix/nix-2.18.0/ . The most important changes are listed in the …

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## [Nix 2.17 released](https://discourse.nixos.org/t/nix-2-17-released/30917)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 0\
**Last updated:** [July 25, 2023, 12:10pm UTC](https://discourse.nixos.org/t/nix-2-17-released/30917 "2023-07-25T12:10:14Z")

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Hi, I’m pleased to announce the availability of Nix 2.17.0. It is available from Download Nix / NixOS | Nix & NixOS and http://releases.nixos.org/?prefix=nix/nix-2.17.0/ . The most important changes are listed in the …

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## [Nix 2.16 released](https://discourse.nixos.org/t/nix-2-16-released/28597)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 6\
**Last updated:** [June 6, 2023, 3:33pm UTC](https://discourse.nixos.org/t/nix-2-16-released/28597 "2023-06-06T15:33:32Z")

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Hi, I’m pleased to announce the availability of Nix 2.16.0. It is available from Download Nix / NixOS | Nix & NixOS and http://releases.nixos.org/?prefix=nix/nix-2.16.0/. The most important changes are listed in the re…

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## [Nix 2.15 released](https://discourse.nixos.org/t/nix-2-15-released/27185)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 3\
**Last updated:** [May 31, 2023, 3:15pm UTC](https://discourse.nixos.org/t/nix-2-15-released/27185 "2023-05-31T15:15:14Z")

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Hi, I’m pleased to announce the availability of Nix 2.15.0. It is available from Download Nix / NixOS | Nix & NixOS and http://releases.nixos.org/?prefix=nix/nix-2.15.0/. The most important changes are listed in the re…

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## [Nix 2.14.0 released](https://discourse.nixos.org/t/nix-2-14-0-released/25900)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 15\
**Last updated:** [March 13, 2023, 10:57am UTC](https://discourse.nixos.org/t/nix-2-14-0-released/25900 "2023-03-13T10:57:38Z")

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Hi, I’m pleased to announce the availability of Nix 2.14.0. It is available from Download Nix / NixOS | Nix & NixOS and http://releases.nixos.org/?prefix=nix/nix-2.14.0/. The most important changes are listed in the re…

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## [Nix 2.13.0 released](https://discourse.nixos.org/t/nix-2-13-0-released/24729)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 8\
**Last updated:** [January 24, 2023, 4:52pm UTC](https://discourse.nixos.org/t/nix-2-13-0-released/24729 "2023-01-24T16:52:51Z")

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Hi, I’m pleased to announce the availability of Nix 2.13.0. It will be available from Download Nix / NixOS | Nix & NixOS and http://releases.nixos.org/?prefix=nix/nix-2.13.0/. Here are the release notes: The repeat …

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## [Nix 2.12.0 released](https://discourse.nixos.org/t/nix-2-12-0-released/23780)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 6\
**Last updated:** [December 22, 2022, 10:23am UTC](https://discourse.nixos.org/t/nix-2-12-0-released/23780 "2022-12-22T10:23:08Z")

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Hi, I’m pleased to announce the availability of Nix 2.12.0. It will be available from Download Nix / NixOS | Nix & NixOS and http://releases.nixos.org/?prefix=nix/nix-2.12.0/. Here are the release notes: On Linux, N…

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## [Nix 2.10.0 released](https://discourse.nixos.org/t/nix-2-10-0-released/20291)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 9\
**Last updated:** [July 16, 2022, 5:55am UTC](https://discourse.nixos.org/t/nix-2-10-0-released/20291 "2022-07-16T05:55:07Z")

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Hi, I’m pleased to announce the availability of Nix 2.10.0. It will be available from Download Nix / NixOS | Nix & NixOS and http://releases.nixos.org/?prefix=nix/nix-2.10.0/. Here are the release notes: nix repl no…

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## [Nix 2.8.0 released](https://discourse.nixos.org/t/nix-2-8-0-released/18714)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 23\
**Last updated:** [June 16, 2022, 6:22pm UTC](https://discourse.nixos.org/t/nix-2-8-0-released/18714 "2022-06-16T18:22:55Z")

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Hi, I’m pleased to announce the availability of Nix 2.8.0. It will be available from Download Nix / NixOS | Nix & NixOS. Here are the release notes: New experimental command: nix fmt, which applies a formatter defin…

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## [Nix 2.9.0 released](https://discourse.nixos.org/t/nix-2-9-0-released/19407)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 7\
**Last updated:** [June 13, 2022, 11:10pm UTC](https://discourse.nixos.org/t/nix-2-9-0-released/19407 "2022-06-13T23:10:09Z")

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Hi, I’m pleased to announce the availability of Nix 2.9.0. It will be available from Download Nix / NixOS | Nix & NixOS. Here are the release notes: Running Nix with the new --debugger flag will cause it to start a …

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## [Nix 2.7.0 released](https://discourse.nixos.org/t/nix-2-7-0-released/18072)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 13\
**Last updated:** [March 29, 2022, 12:49pm UTC](https://discourse.nixos.org/t/nix-2-7-0-released/18072 "2022-03-29T12:49:41Z")

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Hi, I’m pleased to announce the availability of Nix 2.7.0. It will be available from Download Nix / NixOS | Nix & NixOS. Here are the release notes: Nix will now make some helpful suggestions when you …

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## [Nix 2.6.0 released](https://discourse.nixos.org/t/nix-2-6-0-released/17324)

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**Author:** [@edolstra](https://discourse.nixos.org/u/edolstra)\
**Replies:** 16\
**Last updated:** [February 12, 2022, 8:20am UTC](https://discourse.nixos.org/t/nix-2-6-0-released/17324 "2022-02-12T08:20:13Z")

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Hi, I’m pleased to announce the availability of Nix 2.6.0. It will be available from Download Nix / NixOS | Nix & NixOS. Here are the release notes: The Nix CLI now searches for a flake.nix up until the root of the c…

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