nixpkgs/nixos/doc/manual/release-notes/rl-2405.section.md

# Release 24.05 (“Uakari”, 2024.05/??) {#sec-release-24.05}

Support is planned until the end of December 2024, handing over to 24.11.

## Highlights {#sec-release-24.05-highlights}

In addition to numerous new and upgraded packages, this release has the following highlights:

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- `screen`'s module has been cleaned, and will now require you to set `programs.screen.enable` in order to populate `screenrc` and add the program to the environment.

## New Services {#sec-release-24.05-new-services}

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- [Guix](https://guix.gnu.org), a functional package manager inspired by Nix. Available as [services.guix](#opt-services.guix.enable).

- [maubot](https://github.com/maubot/maubot), a plugin-based Matrix bot framework. Available as [services.maubot](#opt-services.maubot.enable).

- [Anki Sync Server](https://docs.ankiweb.net/sync-server.html), the official sync server built into recent versions of Anki. Available as [services.anki-sync-server](#opt-services.anki-sync-server.enable).
The pre-existing [services.ankisyncd](#opt-services.ankisyncd.enable) has been marked deprecated and will be dropped after 24.05 due to lack of maintenance of the anki-sync-server softwares.

- [Clevis](https://github.com/latchset/clevis), a pluggable framework for automated decryption, used to unlock encrypted devices in initrd. Available as [boot.initrd.clevis.enable](#opt-boot.initrd.clevis.enable).

## Backward Incompatibilities {#sec-release-24.05-incompatibilities}

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- The `power.ups` module now generates `upsd.conf`, `upsd.users` and `upsmon.conf` automatically from a set of new configuration options. This breaks compatibility with existing `power.ups` setups where these files were created manually. Back up these files before upgrading NixOS.

- `mkosi` was updated to v19. Parts of the user interface have changed. Consult the
  [release notes](https://github.com/systemd/mkosi/releases/tag/v19) for a list of changes.

## Other Notable Changes {#sec-release-24.05-notable-changes}

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- `addDriverRunpath` has been added to facilitate the deprecation of the old `addOpenGLRunpath` setuphook. This change is motivated by the evolution of the setuphook to include all hardware acceleration.

- Cinnamon has been updated to 6.0. Please beware that the [Wayland session](https://blog.linuxmint.com/?p=4591) is still experimental in this release.

- `services.postgresql.extraPlugins` changed its type from just a list of packages to also a function that returns such a list.
  For example a config line like ``services.postgresql.extraPlugins = with pkgs.postgresql_11.pkgs; [ postgis ];`` is recommended to be changed to ``services.postgresql.extraPlugins = ps: with ps; [ postgis ];``;

- Programs written in [Nim](https://nim-lang.org/) are built with libraries selected by lockfiles.
  The `nimPackages` and `nim2Packages` sets have been removed.
  See https://nixos.org/manual/nixpkgs/unstable#nim for more information.

- The Yama LSM is now enabled by default in the kernel, which prevents ptracing
  non-child processes. This means you will not be able to attach gdb to an
  existing process, but will need to start that process from gdb (so it is a
  child). Or you can set `boot.kernel.sysctl."kernel.yama.ptrace_scope"` to 0.

- Gitea 1.21 upgrade has several breaking changes, including:
  - Custom themes and other assets that were previously stored in `custom/public/*` now belong in `custom/public/assets/*`
  - New instances of Gitea using MySQL now ignore the `[database].CHARSET` config option and always use the `utf8mb4` charset, existing instances should migrate via the `gitea doctor convert` CLI command.

- The `hardware.pulseaudio` module now sets permission of pulse user home directory to 755 when running in "systemWide" mode. It fixes [issue 114399](https://github.com/NixOS/nixpkgs/issues/114399).

- QtMultimedia has changed its default backend to `QT_MEDIA_BACKEND=ffmpeg` (previously `gstreamer` on Linux or `darwin` on MacOS).
  The previous native backends remain available but are now minimally maintained. Refer to [upstream documentation](https://doc.qt.io/qt-6/qtmultimedia-index.html#ffmpeg-as-the-default-backend) for further details about each platform.