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## Other Notable Changes {#sec-release-25.05-notable-changes}

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- `virtualisation.containers` with backend "podman" now supports rootless containers and `sd_notify(3)`-integration
  based on container healthchecks.

- Cinnamon has been updated to 6.4, please check the [upstream announcement](https://www.linuxmint.com/rel_xia_whatsnew.php) for more details.
  - Following [changes in Mint 22](https://github.com/linuxmint/mintupgrade/commit/f239cde908288b8c250f938e7311c7ffbc16bd59) we are no longer overriding Qt application styles. You can still restore the previous default with `qt.style = "gtk2"` and `qt.platformTheme = "gtk2"`.
  - Following [changes in Mint 20](https://github.com/linuxmint/mintupgrade-legacy/commit/ce15d946ed9a8cb8444abd25088edd824bfb18f6) we are replacing xplayer with celluloid since xplayer is no longer maintained.

- Pantheon has been updated to 8, please check the [upstream announcement](https://blog.elementary.io/os-8-available-now/) for more details.
  - Same as elementary OS, the X11 session is named "Classic Session" and the Wayland session is named "Secure Session".
  - The dock has been rewritten, you need to manually migrate the dock items on update. You can check `~/.config/plank/dock1/launchers/` for your previous settings.

- Xfce has been updated to 4.20, please check the [upstream feature tour](https://www.xfce.org/about/tour420) for more details.
  - Wayland session is still [experimental](https://wiki.xfce.org/releng/wayland_roadmap) and requires opt-in using `enableWaylandSession` option.
  - Overriding Wayland compositor is possible using `waylandSessionCompositor` option, but you might need to take care [`xfce4-session`](https://gitlab.xfce.org/xfce/xfce4-session/-/merge_requests/49), [`dbus-update-activation-environment`](https://github.com/labwc/labwc/blob/eaf11face68ee1f1bcc7ce1498304ca8c108c8ba/src/config/session.c#L234) and [`systemctl --user import-environment`](https://github.com/labwc/labwc/blob/eaf11face68ee1f1bcc7ce1498304ca8c108c8ba/src/config/session.c#L239) on startup.
  - For new Xfce installations, default panel layout has [changed](https://gitlab.xfce.org/xfce/xfce4-panel/-/merge_requests/158/diffs) to not include external panel plugins by default. You can still add them yourself using the "Panel Preferences" dialog.

- PAM services for `i3lock`/`i3lock-color`, `vlock`, `xlock`, and `xscreensaver` now default to disabled unless other corresponding NixOS options are set (`programs.i3lock.enable`, `console.enable`, `services.xserver.enable`, and `services.xscreensaver.enable`, respectively). If for some reason you want one of them back without setting the corresponding option, set, e.g., `security.pam.services.xlock.enable = true`.

- The `nixos-generate-config` command now supports a optional `--flake` option, which will generate a flake.nix file alongside the `configuration.nix` and `hardware-configuration.nix`, providing an easy introduction into flake-based system configurations.

- [`system.stateVersion`](#opt-system.stateVersion) is now validated and must be in the `"YY.MM"` format, ideally corresponding to a prior NixOS release.

- [`hardware.xone`](#opt-hardware.xone.enable) will also enable [`hardware.xpad-noone`](#opt-hardware.xpad-noone.enable) to provide Xbox 360 driver by default.

- `services.mysql` now supports easy cluster setup via [`services.mysql.galeraCluster`](#opt-services.mysql.galeraCluster.enable) option.

  Example:

  ```nix
  services.mysql = {
    enable = true;
    galeraCluster = {
      enable = true;
      localName = "Node 1";
      localAddress = "galera_01";
      nodeAddresses = [ "galera_01" "galera_02" "galera_03"];
    };
  };
  ```

- systemd's {manpage}`systemd-ssh-generator(8)` now works out of the box on NixOS.
  - You can ssh into VMs without any networking configuration if your hypervisor configures the vm to support AF_VSOCK.