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Release 22.05 (“Quokka”, 2022.05/30) {#sec-release-22.05}

  • Support is planned until the end of December 2022, handing over to 22.11.

Highlights {#sec-release-22.05-highlights}

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

  • Nix has been updated from 2.3 to 2.8. This mainly brings experimental support for Flakes, but also marks the nix command as experimental which now has to be enabled via the configuration explicitly. For more information and instructions for upgrades, see the release notes for nix-2.4, nix-2.5, nix-2.6, nix-2.7 and nix-2.8

  • The firefox browser on x86_64-linux now makes use of profile-guided optimisation, resulting in a much more responsive browsing experience.

  • GNOME has been upgraded to 42. Please take a look at their Release Notes for details. In particular, it replaces gedit with GNOME Text Editor, GNOME Terminal with GNOME Console (formerly King's Cross) and GNOME Screenshot by a tool integrated into the Shell.

  • PHP 8.1 is now available.

  • systemd services can now set systemd.services.<name>.reloadTriggers instead of reloadIfChanged for a more granular distinction between reloads and restarts.

  • Systemd has been upgraded to the version 250.

  • Pulseaudio has been updated to version 15.0 and now optionally supports additional Bluetooth audio codecs such as aptX or LDAC, with codec switching available in pavucontrol. This feature is disabled by default, but can be enabled with the option hardware.pulseaudio.package = pkgs.pulseaudioFull;. Existing third-party modules that offered similar functions, such as pulseaudio-modules-bt or pulseaudio-hsphfpd, are obsolete and have been removed.

  • PostgreSQL now defaults to major version 14.

  • Module authors can use mkRenamedOptionModuleWith to automate the deprecation cycle without annoying out-of-tree module authors and their users.

  • The default GHC version has been updated from 8.10.7 to 9.0.2. pkgs.haskellPackages and pkgs.ghc will now use this version by default.

  • The GNOME and Plasma installation CDs now use pkgs.calamares and pkgs.calamares-nixos-extensions to allow users to easily install and set up NixOS with a GUI.

  • security.acme.defaults has been added to simplify the configuration of settings for many certificates at once. This also opens up the option to use DNS-01 validation when using enableACME web server virtual hosts (e.g. services.nginx.virtualHosts.*.enableACME).

New Services {#sec-release-22.05-new-services}

Backward Incompatibilities {#sec-release-22.05-incompatibilities}

  • pkgs.ghc now refers to pkgs.targetPackages.haskellPackages.ghc. This only makes a difference if you are cross-compiling and will ensure that pkgs.ghc always runs on the host platform and compiles for the target platform (similar to pkgs.gcc for example). haskellPackages.ghc still behaves as before, running on the build platform and compiling for the host platform (similar to stdenv.cc). This means you don't have to adjust your derivations if you use haskellPackages.callPackage, but when using pkgs.callPackage and taking ghc as an input, you should now use buildPackages.ghc instead to ensure cross compilation keeps working (or switch to haskellPackages.callPackage).

  • pkgs.ghc.withPackages as well as haskellPackages.ghcWithPackages etc. now needs be overridden directly, as opposed to overriding the result of calling it. Additionally, the withLLVM parameter has been renamed to useLLVM. So instead of (ghc.withPackages (p: [])).override { withLLVM = true; }, one needs to use (ghc.withPackages.override { useLLVM = true; }) (p: []).

  • The update of the haskell package set brings with it a new version of the xmonad module, which will break your configuration if you use launch as entrypoint. The example code the corresponding nixos module was adjusted, you may want to have a look at it.

  • The home-assistant module now requires users that don't want their configuration to be managed declaratively to set services.home-assistant.config = null;. This is required due to the way default settings are handled with the new settings style.

    Additionally the default list of extraComponents now includes the minimal dependencies to successfully complete the onboarding procedure.

  • pkgs.emacsPackages.orgPackages is removed because org elpa is deprecated. The packages in the top level of pkgs.emacsPackages, such as org and org-contrib, refer to the ones in pkgs.emacsPackages.elpaPackages and pkgs.emacsPackages.nongnuPackages where the new versions will release.

  • The configuration and state directories used by nixos-containers have been moved from /etc/containers and /var/lib/containers to /etc/nixos-containers and /var/lib/nixos-containers.

    If you are changing system.stateVersion to "22.05" manually on an existing system you are responsible for migrating these directories yourself.

    This is to improve compatibility with libcontainer based software such as Podman and Skopeo which assumes they have ownership over /etc/containers.

  • lib.systems.supported has been removed, as it was overengineered for determining the systems to support in the nixpkgs flake. The list of systems exposed by the nixpkgs flake can now be accessed as lib.systems.flakeExposed.

  • For new installations virtualisation.oci-containers.backend is now set to podman by default. If you still want to use Docker on systems where system.stateVersion is set to to "22.05" set virtualisation.oci-containers.backend = "docker";.Old systems with older stateVersions stay with "docker".

  • security.klogd was removed. Logging of kernel messages is handled by systemd since Linux 3.5.

  • pkgs.ssmtp has been dropped due to the program being unmaintained. pkgs.msmtp can be used instead as a substitute sendmail implementation. The corresponding options services.ssmtp.* have been removed as well. programs.msmtp.* can be used instead for an equivalent setup. For example:

    {
  # Original ssmtp configuration:
  services.ssmtp = {
    enable = true;
    useTLS = true;
    useSTARTTLS = true;
    hostName = "smtp.example:587";
    authUser = "someone";
    authPassFile = "/secrets/password.txt";
  };

  # Equivalent msmtp configuration:
  programs.msmtp = {
    enable = true;
    accounts.default = {
      tls = true;
      tls_starttls = true;
      auth = true;
      host = "smtp.example";
      port = 587;
      user = "someone";
      passwordeval = "cat /secrets/password.txt";
    };
  };
}

  • services.kubernetes.addons.dashboard was removed due to it being an outdated version.

  • services.kubernetes.scheduler.{port,address} now set --secure-port and --bind-address instead of --port and --address, since the former have been deprecated and are no longer functional in kubernetes>=1.23. Ensure that you are not relying on the insecure behaviour before upgrading.

  • In the PowerDNS Recursor module (services.pdns-recursor), default values of several IP address-related NixOS options have been updated to match the default upstream behavior. In particular, Recursor by default will:

    • listen on (and allows connections from) both IPv4 and IPv6 addresses (services.pdns-recursor.dns.address, services.pdns-recursor.dns.allowFrom);
    • allow only local connections to the REST API server (services.pdns-recursor.api.allowFrom).

  • In the ncdns module, the default value of services.ncdns.address has been changed to the IPv6 loopback address (::1).

  • openldap (and therefore the slapd LDAP server) were updated to version 2.6.2. The project introduced backwards-incompatible changes, namely the removal of the bdb, hdb, ndb, and shell backends in slapd. Therefore before updating, dump your database slapcat -n 1 in LDIF format, and reimport it after updating your services.openldap.settings, which represents your cn=config.

    Additionally with 2.5 the argon2 module was included in the standard distribution and renamed from pw-argon2 to argon2. Remember to update your olcModuleLoad entry in cn=config.

  • openssh has been update to 8.9p1, changing the FIDO security key middleware interface.

  • git no longer hardcodes the path to openssh' ssh binary to reduce the amount of rebuilds. If you are using git with ssh remotes and do not have a ssh binary in your environment consider adding openssh to it or switching to gitFull.

  • services.k3s.enable no longer implies systemd.enableUnifiedCgroupHierarchy = false, and will default to the 'systemd' cgroup driver when using services.k3s.docker = true. This change may require a reboot to take effect, and k3s may not be able to run if the boot cgroup hierarchy does not match its configuration. The previous behavior may be retained by explicitly setting systemd.enableUnifiedCgroupHierarchy = false in your configuration.

  • fonts.fonts no longer includes ancient bitmap fonts when both config.services.xserver.enable and config.nixpkgs.config.allowUnfree are enabled. If you still want these fonts, use:

    {
  fonts.fonts = [
    pkgs.xorg.fontbhlucidatypewriter100dpi
    pkgs.xorg.fontbhlucidatypewriter75dpi
    pkgs.xorg.fontbh100dpi
  ];
}

  • services.prometheus.alertManagerTimeout has been removed as it has been deprecated upstream and has no effect.

  • The DHCP server (services.dhcpd4, services.dhcpd6) has been hardened. The service is now using the systemd's DynamicUser mechanism to run as an unprivileged dynamically-allocated user with limited capabilities. The dhcpd state files are now always stored in /var/lib/dhcpd{4,6} and the services.dhcpd4.stateDir and service.dhcpd6.stateDir options have been removed. If you were depending on root privileges or set{uid,gid,cap} binaries in dhcpd shell hooks, you may give dhcpd more capabilities with e.g. systemd.services.dhcpd6.serviceConfig.AmbientCapabilities.

  • The mailpile email webclient (services.mailpile) has been removed due to its reliance on python2.

  • services.ipfs.extraFlags is now escaped with utils.escapeSystemdExecArgs. If you rely on systemd interpolating extraFlags in the service ExecStart, this will no longer work.

  • hbase version 0.98.24 has been removed. The package now defaults to version 2.4.11. Versions 1.7.1 and 3.0.0-alpha-2 are also available.

  • services.paperless-ng was renamed to services.paperless. Accordingly, the paperless-ng-manage script (located in dataDir) was renamed to paperless-manage. services.paperless now uses paperless-ngx.

  • The matrix-synapse service (services.matrix-synapse) has been converted to use the settings option defined in RFC42. This means that options that are part of your homeserver.yaml configuration, and that were specified at the top-level of the module (services.matrix-synapse) now need to be moved into services.matrix-synapse.settings. And while not all options you may use are defined in there, they are still supported, because you can set arbitrary values in this freeform type.

    The listeners.*.bind_address option was renamed to bind_addresses in order to match the upstream homeserver.yaml option name. It is now also a list of strings instead of a string.

    An example to make the required migration clearer:

    Before:

    {
  services.matrix-synapse = {
    enable = true;

    server_name = "example.com";
    public_baseurl = "https://example.com:8448";

    enable_registration = false;
    registration_shared_secret = "xohshaeyui8jic7uutuDogahkee3aehuaf6ei3Xouz4iicie5thie6nohNahceut";
    macaroon_secret_key = "xoo8eder9seivukaiPh1cheikohquuw8Yooreid0The4aifahth3Ou0aiShaiz4l";

    tls_certificate_path = "/var/lib/acme/example.com/fullchain.pem";
    tls_certificate_path = "/var/lib/acme/example.com/fullchain.pem";

    listeners = [ {
      port = 8448;
      bind_address = "";
      type = "http";
      tls = true;
      resources = [ {
        names = [ "client" ];
        compress = true;
      } {
        names = [ "federation" ];
        compress = false;
      } ];
    } ];

  };
}

    After:

    {
  services.matrix-synapse = {
    enable = true;

    # this attribute set holds all values that go into your homeserver.yaml configuration
    # See https://github.com/matrix-org/synapse/blob/develop/docs/sample_config.yaml for
    # possible values.
    settings = {
      server_name = "example.com";
      public_baseurl = "https://example.com:8448";

      enable_registration = false;
      # pass `registration_shared_secret` and `macaroon_secret_key` via `extraConfigFiles` instead

      tls_certificate_path = "/var/lib/acme/example.com/fullchain.pem";
      tls_certificate_path = "/var/lib/acme/example.com/fullchain.pem";

      listeners = [ {
        port = 8448;
        bind_addresses = [
          "::"
          "0.0.0.0"
        ];
        type = "http";
        tls = true;
        resources = [ {
          names = [ "client" ];
          compress = true;
        } {
          names = [ "federation" ];
          compress = false;
        } ];
      } ];
    };

    extraConfigFiles = [
      "/run/keys/matrix-synapse/secrets.yaml"
    ];
  };
}

    The secrets in your original config should be migrated into a YAML file that is included via extraConfigFiles. The filename must be quoted to prevent nix from copying it to the (world readable) store.

    Additionally a few option defaults have been synced up with upstream default values, for example the max_upload_size grew from 10M to 50M. For the same reason, the default media_store_path was changed from ${dataDir}/media to ${dataDir}/media_store if system.stateVersion is at least 22.05. Files will need to be manually moved to the new location if the stateVersion is updated.

    As of Synapse 1.58.0, the old groups/communities feature has been disabled by default. It will be completely removed with Synapse 1.61.0.

  • The Keycloak package (pkgs.keycloak) has been switched from the Wildfly version, which will soon be deprecated, to the Quarkus based version. The Keycloak service (services.keycloak) has been updated to accommodate the change and now differs from the previous version in a few ways:

    For example, when using a reverse proxy the migration could look like this:

    Before:

    {
  services.keycloak = {
    enable = true;
    httpPort = "8080";
    frontendUrl = "https://keycloak.example.com/auth";
    database.passwordFile = "/run/keys/db_password";
    extraConfig = {
      "subsystem=undertow"."server=default-server"."http-listener=default".proxy-address-forwarding = true;
    };
  };
}

    After:

    {
  services.keycloak = {
    enable = true;
    settings = {
      http-port = 8080;
      hostname = "keycloak.example.com";
      http-relative-path = "/auth";
      proxy = "edge";
    };
    database.passwordFile = "/run/keys/db_password";
  };
}

  • The MoinMoin wiki engine (services.moinmoin) has been removed, because Python 2 is being retired from nixpkgs.

  • Services in the hadoop module previously set openFirewall to true by default. This has now been changed to false. Node definitions for multi-node clusters would need openFirewall = true; to be added to to hadoop services when upgrading from NixOS 21.11.

  • services.hadoop.yarn.nodemanager now uses cgroup-based CPU limit enforcement by default. Additionally, the option useCGroups was added to nodemanagers as an easy way to switch back to the old behavior.

  • The wafHook hook now honors NIX_BUILD_CORES when enableParallelBuilding is not set explicitly. Packages can restore the old behaviour by setting enableParallelBuilding=false.

  • pkgs.claws-mail-gtk2, representing Claws Mail's older release version three, was removed in order to get rid of Python 2. Please switch to claws-mail, which is Claws Mail's latest release based on GTK+3 and Python 3.

  • The writers.writePython2 and corresponding writers.writePython2Bin convenience functions to create executable Python 2 scripts in the store were removed in preparation of removal of the Python 2 interpreter. Scripts have to be converted to Python 3 for use with writers.writePython3 or writers.writePyPy2 needs to be used.

  • buildGoModule was updated to use go_1_17, third party derivations that specify >= go 1.17 in the main go.mod will need to regenerate their vendorSha256 hash.

  • The gnome-passwordsafe package updated to version 6.x and renamed to gnome-secrets.

  • services.gnome.experimental-features.realtime-scheduling option has been removed, as GNOME Shell now uses rtkit. Use security.rtkit.enable = true; instead. As before, you will need to have it enabled using GSettings.

  • services.telepathy will no longer be enabled by default for GNOME desktops, one should enable it in their configs if using Empathy or Polari.

  • If you previously used /etc/docker/daemon.json, you need to incorporate the changes into the new option virtualisation.docker.daemon.settings.

  • Ntopng (services.ntopng) is updated to 5.2.1 and uses a separate Redis instance if system.stateVersion is at least 22.05. Existing setups shouldn't be affected.

  • The backward compatibility in services.wordpress to configure sites with the old interface has been removed. Please use services.wordpress.sites instead.

  • The backward compatibility in services.dokuwiki to configure sites with the old interface has been removed. Please use services.dokuwiki.sites instead.

  • opensmtpd-extras is no longer build with python2 scripting support due to python2 deprecation in nixpkgs

  • services.miniflux.adminCredentialFiles is now required, instead of defaulting to admin and password.

  • The taskserver module no longer implicitly opens ports in the firewall configuration. This is now controlled through the option services.taskserver.openFirewall.

  • The autorestic package has been upgraded from 1.3.0 to 1.5.0 which introduces breaking changes in config file, check their migration guide for more details.

  • teleport has been upgraded to major version 9. Please see upstream upgrade instructions and release notes.

  • For pkgs.python3.pkgs.ipython, its direct dependency pkgs.python3.pkgs.matplotlib-inline (which is really an adapter to integrate matplotlib in ipython if it is installed) does not depend on pkgs.python3.pkgs.matplotlib anymore. This is closer to a non-Nix install of ipython. This has the added benefit to reduce the closure size of ipython from ~400MB to ~160MB (including ~100MB for python itself).

  • documentation.man has been refactored to support choosing a man implementation other than GNU's man-db. For this, documentation.man.manualPages has been renamed to documentation.man.man-db.manualPages. If you want to use the new alternative man implementation mandoc, add documentation.man = { enable = true; man-db.enable = false; mandoc.enable = true; } to your configuration.

  • Normal users (with isNormalUser = true) which have non-empty subUidRanges or subGidRanges set no longer have additional implicit ranges allocated. To enable automatic allocation back set autoSubUidGidRange = true.

  • idris2 now requires --package when using packages contrib and network, while previously these idris2 packages were automatically loaded.

  • The iputils package, which is installed by default, no longer provides the legacy tools tftpd and traceroute6. More tools (ninfod, rarpd, and rdisc) are going to be removed in the next release. See upstream's release notes for more details and available replacements.

  • services.thelounge.private was removed in favor of services.thelounge.public, to follow with upstream changes.

  • pkgs.docbookrx was removed since it's unmaintained

  • pkgs._7zz is now correctly licensed as LGPL3+ and BSD3 with optional unfree unRAR licensed code

  • The vim.customize function produced by vimUtils.makeCustomizable now has a slightly different interface:

    • The wrapper now includes everything in the given Vim derivation if name is "vim" (the default). This makes the wrapManual argument obsolete, but this behavior can be overridden by setting the standalone argument.
    • All the executables present in the given derivation (or, in standalone mode, only the *vim ones) are wrapped. This makes the wrapGui argument obsolete.
    • The vimExecutableName and gvimExecutableName arguments were replaced by a single executableName argument in which the shell variable $exe can be used to refer to the wrapped executable's name.

    See the comments in pkgs/applications/editors/vim/plugins/vim-utils.nix for more details.

    vimUtils.vimWithRC was removed. You should instead use customize on a Vim derivation, which now accepts vimrcFile and gvimrcFile arguments.

  • tilp2 was removed together with its module

  • The F-PROT antivirus (fprot package) and its service module were removed because it reached end-of-life.

  • bird1 and its modules services.bird as well as services.bird6 have been removed. Upgrade to services.bird2.

  • The options networking.interfaces.<name>.ipv4.routes and networking.interfaces.<name>.ipv6.routes are no longer ignored when using networkd instead of the default scripted network backend by setting networking.useNetworkd to true.

  • The miller package has been upgraded from 5.10.3 to 6.2.0. See What's new in Miller 6.

  • MultiMC has been replaced with the fork PrismLauncher due to upstream developers being hostile to 3rd party package maintainers. PrismLauncher removes all MultiMC branding and is aimed at providing proper 3rd party packages like the one contained in Nixpkgs. This change affects the data folder where game instances and other save and configuration files are stored. Users with existing installations should rename ~/.local/share/multimc to ~/.local/share/PrismLauncher. The main config file's path has also moved from ~/.local/share/multimc/multimc.cfg to ~/.local/share/PrismLauncher/prismlauncher.cfg.

  • [email protected] settings have been reverted to the default systemd behaviour. User namespaces are now activated by default. If you want to keep running nspawn containers without user namespaces you need to set systemd.nspawn.<name>.execConfig.PrivateUsers = false

  • systemd-shutdown is now properly linked on shutdown to unmount all filesystems and device mapper devices cleanly. This can be disabled using systemd.shutdownRamfs.enable.

  • The Tor SOCKS proxy is now actually disabled if services.tor.client.enable is set to false (the default). If you are using this functionality but didn't change the setting or set it to false, you now need to set it to true.

  • services.github-runner has been hardened. Notably address families and system calls have been restricted, which may adversely affect some kinds of testing, e.g. using AF_BLUETOOTH to test bluetooth devices.

  • The terraform 0.12 compatibility has been removed and the terraform.withPlugins and terraform-providers.mkProvider implementations simplified. Providers now need to be stored under $out/libexec/terraform-providers/<registry>/<owner>/<name>/<version>/<os>_<arch>/terraform-provider-<name>_v<version> (which mkProvider does).

    This breaks back-compat so it's not possible to mix-and-match with previous versions of nixpkgs. In exchange, it now becomes possible to use the providers from nixpkgs-terraform-providers-bin directly.

  • The dendrite package has been upgraded from 0.5.1 to 0.6.5. Instances configured with split sqlite databases, which has been the default in NixOS, require merging of the federation sender and signing key databases. See upstream release notes on version 0.6.0 for details on database changes.

  • The existing pkgs.opentelemetry-collector has been moved to pkgs.opentelemetry-collector-contrib to match the actual source being the "contrib" edition. pkgs.opentelemetry-collector is now the actual core release of opentelemetry-collector. If you use the community contributions you should change the package you refer to. If you don't need them update your commands from otelcontribcol to otelcorecol and enjoy a 7x smaller binary.

  • services.zookeeper has a new option jre for specifying the JRE to start zookeeper with. It defaults to the JRE that pkgs.zookeeper was wrapped with, instead of pkgs.jre. This changes the JRE to pkgs.jdk11_headless by default.

  • pkgs.pgadmin now refers to pkgs.pgadmin4. pgadmin3 has been removed.

  • pkgs.minetestclient_4 and pkgs.minetestserver_4 have been removed, as the last 4.x release was in 2018. pkgs.minetestclient (equivalent to pkgs.minetest ) and pkgs.minetestserver can be used instead.

  • pkgs.noto-fonts-cjk is now deprecated in favor of pkgs.noto-fonts-cjk-sans and pkgs.noto-fonts-cjk-serif because they each have different release schedules. To maintain compatibility with prior releases of Nixpkgs, pkgs.noto-fonts-cjk is currently an alias of pkgs.noto-fonts-cjk-sans and doesn't include serif fonts.

  • pkgs.epgstation has been upgraded from v1 to v2, resulting in incompatible changes in the database scheme and configuration format.

  • Some top-level settings under services.epgstation is now deprecated because it was redundant due to the same options being present in services.epgstation.settings.

  • The option services.epgstation.basicAuth was removed because basic authentication support was dropped by upstream.

  • The option services.epgstation.database.passwordFile no longer has a default value. Make sure to set this option explicitly before upgrading. Change the database password if necessary.

  • The services.epgstation.settings option now expects options for config.yml in EPGStation v2.

  • Existing data for the services.epgstation module would have to be backed up prior to the upgrade. To back up existing data to /tmp/epgstation.bak, run sudo -u epgstation epgstation run backup /tmp/epgstation.bak. To import that data after to the upgrade, run sudo -u epgstation epgstation run v1migrate /tmp/epgstation.bak

  • switch-to-configuration (the script that is run when running nixos-rebuild switch for example) has been reworked

    • The interface that allows activation scripts to restart units has been streamlined. Restarting and reloading is now done by a single file /run/nixos/activation-restart-list that honors restartIfChanged and reloadIfChanged of the units.
      • Preferring to reload instead of restarting can still be achieved using /run/nixos/activation-reload-list.
    • The script now uses a proper ini-file parser to parse systemd units. Some values are now only searched in one section instead of in the entire unit. This is only relevant for units that don't use the NixOS systemd moule.
      • RefuseManualStop, X-OnlyManualStart, X-StopOnRemoval, X-StopOnReconfiguration are only searched in the [Unit] section
      • X-ReloadIfChanged, X-RestartIfChanged, X-StopIfChanged are only searched in the [Service] section

  • The services.bookstack.cacheDir option has been removed, since the cache directory is now handled by systemd.

  • The services.bookstack.extraConfig option has been replaced by services.bookstack.config which implements a settings-style configuration.

  • lib.assertMsg and lib.assertOneOf no longer return false if the passed condition is false, throwing the given error message instead (which makes the resulting error message less cluttered). This will not impact the behaviour of code using these functions as intended, namely as top-level wrapper for assert conditions.

  • The vpnc package has been changed to use GnuTLS instead of OpenSSL by default for licensing reasons.

  • The default version of nextcloud is nextcloud24. Please note that it's not possible to upgrade nextcloud across multiple major versions! This means it's e.g. not possible to upgrade from nextcloud22 to nextcloud24 in a single deploy and most 21.11 users will have to upgrade to nextcloud23 first.

  • pkgs.vimPlugins.onedark-nvim now refers to navarasu/onedark.nvim (formerly refers to olimorris/onedarkpro.nvim).

  • services.pipewire.enable will default to enabling the WirePlumber session manager instead of pipewire-media-session. pipewire-media-session is deprecated by upstream and not recommended, but can still be manually enabled by setting services.pipewire.media-session.enable to true and services.pipewire.wireplumber.enable to false.

  • pkgs.makeDesktopItem has been refactored to provide a more idiomatic API. Specifically:

    • All valid options as of FDO Desktop Entry specification version 1.4 can now be passed in as explicit arguments
    • exec can now be null, for entries that are not of type Application
    • mimeType argument is renamed to mimeTypes for consistency
    • mimeTypes, categories, implements, keywords, onlyShowIn and notShowIn take lists of strings instead of one string with semicolon separators
    • extraDesktopEntries renamed to extraConfig for consistency
    • Actions should now be provided as an attrset actions, the Actions line will be autogenerated.
    • extraEntries is removed.
    • Additional validation is added both at eval time and at build time.

    See the vscode package for a more detailed example.

  • Existing resholve* functions have been renamed and nested under pkgs.resholve. Update uses to:

    • resholvePackage -> resholve.mkDerivation
    • resholveScript -> resholve.writeScript
    • resholveScriptBin -> resholve.writeScriptBin

  • pkgs.cosmopolitan no longer provides the cosmoc command. It has been moved to pkgs.cosmoc.

  • pkgs.graalvmXX-ce packages no longer provide support for Python/Ruby/WASM, instead focusing only in Java and Native Image Support. If you need to add support back, please see the pkgs.graalvmCEPackages.mkGraal function to create your own customized version of GraalVM with support for what you need.

Other Notable Changes {#sec-release-22.05-notable-changes}

  • The option services.redis.servers was added to support per-application redis-server which is more secure since Redis databases are only mere key prefixes without any configuration or ACL of their own. Backward-compatibility is preserved by mapping old services.redis.settings to services.redis.servers."".settings, but you are strongly encouraged to name each redis-server instance after the application using it, instead of keeping that nameless one. Except for the nameless services.redis.servers."" still accessible at 127.0.0.1:6379, and to the members of the Unix group redis through the Unix socket /run/redis/redis.sock, all other services.redis.servers.${serverName} are only accessible by default to the members of the Unix group redis-${serverName} through the Unix socket /run/redis-${serverName}/redis.sock.

  • The option virtualisation.vmVariant was added to allow users to make changes to the nixos-rebuild build-vm configuration that do not apply to their normal system.

    The config.system.build.vm attribute now always exists and defaults to the value from vmVariant. Configurations that import the virtualisation/qemu-vm.nix module themselves will override this value, such that vmVariant is not used.

    Similarly virtualisation.vmVariantWithBootloader was added.

  • The configuration portion of the nix-daemon module has been reworked and exposed as nix.settings:

  • kops defaults to 1.23.2, which will enable Instance Metadata Service Version 2 and require tokens on new clusters with Kubernetes >= 1.22. This will increase security by default, but may break some types of workloads. The default behaviour for spec.kubeDNS.nodeLocalDNS.forwardToKubeDNS has changed from true to false. Cilium now has disable-cnp-status-updates: true by default. Set this to false if you rely on the CiliumNetworkPolicy status fields. Support for Kubernetes 1.17, the Lyft CNI, Weave CNI on Kubernetes >= 1.23, CentOS 7 and 8, Debian 9, RHEL 7, and Ubuntu 16.05 (Xenial) has been removed. See the 1.22 release notes and 1.23 release notes for more details, including other significant changes.

  • Mattermost has been upgraded to extended support version 6.3 as the previously packaged extended support version 5.37 is reaching end of life. Migration may take some time, see the changelog and important upgrade notes.

  • The writers.writePyPy2/writers.writePyPy3 and corresponding writers.writePyPy2Bin/writers.writePyPy3Bin convenience functions to create executable Python 2/3 scripts using the PyPy interpreter were added.

  • Some improvements have been made to the hadoop module:

    • A gatewayRole option has been added, for deploying hadoop cluster configuration files to a node that does not have any active services
    • Support for older versions of hadoop have been added to the module
    • Overriding and extending site XML files has been made easier

  • The auto-upgrade service now accepts persistent (default: true) parameter. By default auto-upgrade will now run immediately if it would have been triggered at least once during the time when the timer was inactive.

  • Mastodon now uses services.redis.servers to start a new redis server, instead of using a global redis server. This improves compatibility with other services that use redis.

    Note that this will recreate the redis database, although according to the Mastodon docs, this is almost harmless:

    Losing the Redis database is almost harmless: The only irrecoverable data will be the contents of the Sidekiq queues and scheduled retries of previously failed jobs. The home and list feeds are stored in Redis, but can be regenerated with tootctl.

    If you do want to save the redis database, you can use the following commands:

    redis-cli save
cp /var/lib/redis/dump.rdb "/var/lib/redis-mastodon/dump.rdb"

  • Peertube now uses services.redis.servers to start a new redis server, instead of using a global redis server. This improves compatibility with other services that use redis.

    Redis database is used for storage only cache and job queue. More information can be found here - Peertube architecture.

    If you do want to save the redis database, you can use the following commands before upgrade OS:

    redis-cli save
sudo mkdir /var/lib/redis-peertube
sudo cp /var/lib/redis/dump.rdb /var/lib/redis-peertube/dump.rdb

  • Added the keter NixOS module. Keter reverse proxies requests to your loaded application based on virtual hostnames.

  • If you are using Wayland you can choose to use the Ozone Wayland support in Chrome and several Electron apps by setting the environment variable NIXOS_OZONE_WL=1 (for example via environment.sessionVariables.NIXOS_OZONE_WL = "1"). This is not enabled by default because Ozone Wayland is still under heavy development and behavior is not always flawless. Furthermore, not all Electron apps use the latest Electron versions.

  • A new option group systemd.network.wait-online was added, with options to configure systemd-networkd-wait-online.service:

    • anyInterface allows specifying that the network should be considered online when at least one interface is online (useful on laptops)
    • timeout defines how long to wait for the network to come online
    • extraArgs for everything else

  • The influxdb2 package was split into influxdb2-server and influxdb2-cli, matching the split that took place upstream. A combined influxdb2 package is still provided in this release for backwards compatibility, but will be removed at a later date.

  • The unifi package was switched from unifi6 to unifi7. Direct downgrades from Unifi 7 to Unifi 6 are not possible and require restoring from a backup made by Unifi 6.

  • programs.zsh.autosuggestions.strategy now takes a list of strings instead of a string.

  • The asterisk and asterisk-stable packages were switched from asterisk_18 to the newly-packaged asterisk_19. Asterisk 13 and 17 have been removed as they have reached their end of life.

  • The services.unifi.openPorts option default value of true is now deprecated and will be changed to false in 22.11. Configurations using this default will print a warning when rebuilt.

  • The services.unifi-video.openPorts option default value of true is now deprecated and will be changed to false in 22.11. Configurations using this default will print a warning when rebuilt.

  • security.acme certificates will now correctly check for CA revokation before reaching their minimum age.

  • Removing domains from security.acme.certs._name_.extraDomainNames will now correctly remove those domains during rebuild/renew.

  • MariaDB is now offered in several versions, not just the newest one. So if you have a need for running MariaDB 10.4 for example, you can now just set services.mysql.package = pkgs.mariadb_104;. In general, it is recommended to run the newest version, to get the newest features, while sticking with an LTS version will most likely provide a more stable experience. Sometimes software is also incompatible with the newest version of MariaDB.

  • The option programs.ssh.enableAskPassword was added, decoupling the setting of SSH_ASKPASS from services.xserver.enable. This allows easy usage in non-X11 environments, e.g. Wayland.

  • programs.ssh.knownHosts has gained an extraHostNames option to augment hostNames. It is now possible to use the attribute name of a knownHosts entry as the primary host name and specify secondary host names using extraHostNames without having to duplicate the primary host name.

  • The services.stubby module was converted to a settings-style configuration.

  • The option services.xserver.desktopManager.runXdgAutostartIfNone was added in order to automatically run XDG autostart files for sessions without a desktop manager. This replaces helpers like the dex package.

  • When setting i18n.inputMethod.enabled to fcitx5, it no longer creates corresponding systemd user services. It now relies on XDG autostart files to start and work properly in your desktop sessions. If you are using only a window manager without a desktop manager, you need to enable services.xserver.desktopManager.runXdgAutostartIfNone or using the dex package to make fcitx5 work.

  • The option services.duplicati.dataDir has been added to allow changing the location of duplicati's files.

  • The options boot.extraModprobeConfig and boot.blacklistedKernelModules now also take effect in the initrd by copying the file /etc/modprobe.d/nixos.conf into the initrd.

  • nixos-generate-config now puts the dhcp configuration in hardware-configuration.nix instead of configuration.nix.

  • ORY Kratos was updated to version 0.9.0-alpha.3, which introduces some breaking changes:

    • All endpoints at the Admin API are now exposed at /admin/. For example, endpoint https://kratos:4434/identities is now exposed at https://kratos:4434/admin/identities
    • Configuration key selfservice.whitelisted_return_urls has been renamed to allowed_return_urls
    • The password_identifier form field of the password login strategy has been renamed to identifier to make compatibility with passwordless flows possible.
    • Instead of having a global default_schema_url which developers used to update their schema, you now need to define the default_schema_id which must reference schema ID in your config.
    • Calling /self-service/recovery without flow ID or with an invalid flow ID while authenticated will now respond with an error instead of redirecting to the default page.
    • If you are relying on the SQLite images, update your Docker Pull commands as follows:
      • docker pull oryd/kratos:{version}
    • Additionally, all passwords now have to be at least 8 characters long.
    • For more details, see:

  • fetchFromSourcehut now allows fetching repositories recursively using fetchgit or fetchhg if the argument fetchSubmodules is set to true.

  • A module for declarative configuration of openconnect VPN profiles was added under networking.openconnect.

  • The element-desktop package now has an useKeytar option (defaults to true), which allows disabling keytar and in turn libsecret usage (which binds to native credential managers / keychain libraries).

  • The option services.thelounge.plugins has been added to allow installing plugins for The Lounge. Plugins can be found in pkgs.theLoungePlugins.plugins and pkgs.theLoungePlugins.themes.

  • The option services.xserver.videoDriver = [ "nvidia" ]; will now also install nvidia VA-API drivers by default.

  • The firmwareLinuxNonfree package has been renamed to linux-firmware.

  • It is now possible to specify wordlists to include as handy to access environment variables using the config.environment.wordlist configuration options.

  • The services.mbpfan module was converted to a RFC 0042 configuration.

  • The default value for programs.spacefm.settings.graphical_su got unset. It previously pointed to gksu which has been removed.

  • The Dino XMPP client was updated to 0.3, adding support for audio and video calls.

  • services.mattermost.plugins has been added to allow the declarative installation of Mattermost plugins. Plugins are automatically repackaged using autoPatchelf.

  • services.logrotate.enable now defaults to true if any rotate path has been defined, and some paths have been added by default.

  • The logrotate module also has been updated to freeform syntax: services.logrotate.paths and services.logrotate.extraConfig will work, but issue deprecation warnings and services.logrotate.settings should now be used instead.

  • security.pam.ussh has been added, which allows authorizing PAM sessions based on SSH certificates held within an SSH agent, using pam-ussh.

  • The vscode-extensions.ionide.ionide-fsharp package has been updated to 6.0.0 and now requires .NET 6.0.

  • The phpPackages.box package has been updated from 2.7.5 to 3.16.0. See the upgrade guide for more details.

  • The zrepl package has been updated from 0.4.0 to 0.5:

    • The RPC protocol version was bumped; all zrepl daemons in a setup must be updated and restarted before replication can resume.
    • A bug involving encrypt-on-receive has been fixed. Read the zrepl documentation and check the output of zfs get -r encryption,zrepl:placeholder PATH_TO_ROOTFS on the receiver.

  • The polybar package has been updated from 3.5.7 to 3.6.2. See the changelog for more details.

    • Breaking changes include changes to escaping rules in configuration values, changes in behavior when encountering invalid tag names, and changes to inter-process-messaging (IPC).

  • Renamed option services.openssh.challengeResponseAuthentication to services.openssh.kbdInteractiveAuthentication. Reason is that the old name has been deprecated upstream. Using the old option name will still work, but produce a warning.

  • services.autorandr now allows for adding hooks and profiles declaratively.

  • The pomerium-cli command has been moved out of the pomerium package into the pomerium-cli package, following upstream's repository split. If you are using the pomerium-cli command, you should now install the pomerium-cli package.

  • The option services.networking.networkmanager.enableFccUnlock was added to support FCC unlock procedures. Since release 1.18.4, the ModemManager daemon no longer automatically performs the FCC unlock procedure by default. See the docs for more details.

  • programs.tmux has a new option plugins that accepts a list of packages from the tmuxPlugins group. The specified packages are added to the system and loaded by tmux.

  • The polkit service, available at security.polkit.enable, is now disabled by default. It will automatically be enabled through services and desktop environments as needed.

  • mercury was updated to 22.01.1, which has some breaking changes (Mercury 22.01 news).

  • xfsprogs was update to version 5.15, which enables inobtcount and bigtime by default on filesystem creation. Support for these features was added in kernel 5.10 and deemed stable in kernel 5.15. If you want to be able to mount XFS filesystems created with this release of xfsprogs on kernel releases older than 5.10, you need to format them with mkfs.xfs -m bigtime=0 -m inobtcount=0.

  • services.xserver.desktopManager.xfce now includes Xfce's screen locker, xfce4-screensaver that is enabled by default. You can disable it by setting false to services.xserver.desktopManager.xfce.enableScreensaver.

  • The hadoop package has added support for aarch64-linux and aarch64-darwin as of 3.3.1 (#158613).

  • The R package now builds again on aarch64-darwin (#158992).

  • The nss package was split into nss_esr and nss_latest, with nss being an alias for nss_esr. This was done to ease maintenance of nss and dependent high-profile packages like firefox.

  • The default scribus version is now 1.5, while version 1.4 is still available as scribus_1_4 (#172700).

  • The Nextcloud module now supports to create a Mysql database automatically with services.nextcloud.database.createLocally enabled.

  • The Nextcloud module now allows setting the value of the max-age directive of the Strict-Transport-Security HTTP header, which is now controlled by the services.nextcloud.https option, rather than services.nginx.recommendedHttpHeaders.

  • The spark3 package has been updated from 3.1.2 to 3.2.1 (#160075):

    • Testing has been enabled for aarch64-linux in addition to x86_64-linux.
    • The spark3 package is now usable on aarch64-darwin as a result of #158613 and #158992.

  • The option services.snapserver.openFirewall will no longer default to true starting with NixOS 22.11. Enable it explicitly if you need to control Snapserver remotely or connect streamig clients from other hosts.

  • The option networking.useDHCP isn't deprecated anymore. When using systemd-networkd, a generic .network-unit is added which enables DHCP for each interface matching en*, eth* or wl* with priority 99 (which means that it doesn't have any effect if such an interface is matched by a .network-unit with a lower priority). In case of scripted networking, no behavior was changed.

  • The new postgresqlTestHook runs a PostgreSQL server for the duration of package checks.

  • zfs was updated from 2.1.4 to 2.1.5, enabling it to be used with Linux kernel 5.18.

  • stdenv.mkDerivation now supports a self-referencing finalAttrs: parameter containing the final mkDerivation arguments including overrides. drv.overrideAttrs now supports two parameters finalAttrs: previousAttrs:. This allows packaging configuration to be overridden in a consistent manner by providing an alternative to rec {} syntax.

    Additionally, passthru can now reference finalAttrs.finalPackage containing the final package, including attributes such as the output paths and overrideAttrs.

    New language integrations can be simplified by overriding a "prototype" package containing the language-specific logic. This removes the need for a extra layer of overriding for the "generic builder" arguments, thus removing a usability problem and source of error.