Release 21.05 (“Okapi”, 2021.05/??)Highlights
In addition to numerous new and upgraded packages, this release has the
following highlights:
Support is planned until the end of December 2021, handing over to 21.11.
The default Linux kernel was updated to the 5.10 LTS series, coming from the 5.4 LTS series.GNOME desktop environment was upgraded to 3.38, see its release notes.
GNURadio 3.8 was
finally
packaged, along with a rewrite to the Nix expressions, allowing users to
override the features upstream supports selecting to compile or not to.
Additionally, the attribute gnuradio and gnuradio3_7
now point to an externally wrapped by default derivations, that allow you to
also add `extraPythonPackages` to the Python interpreter used by GNURadio.
Missing environmental variables needed for operational GUI were also added
(#75478).
GNURadio has a
pkgs attribute set, and there's a gnuradio.callPackage
function that extends pkgs with a mkDerivation, and a
mkDerivationWith, like Qt5. Now all gnuradio.pkgs are
defined with gnuradio.callPackage and some packages that depend
on gnuradio are defined with this as well.
Privoxy has been updated
to version 3.0.32 (See announcement).
Compared to the previous release, Privoxy has gained support for HTTPS
inspection (still experimental), Brotli decompression, several new filters
and lots of bug fixes, including security ones. In addition, the package
is now built with compression and external filters support, which were
previously disabled.
Regarding the NixOS module, new options for HTTPS inspection have been added
and has been replaced by the new
(See RFC 0042
for the motivation).
Python optimizations were disabled again. Builds with optimizations enabled
are not reproducible. Optimizations can now be enabled with an option.
Kodi has been updated to version 19.0 "Matrix". See
the announcement for
further details.
The option has been removed as
it only supported a single setting which would always be the default.
Instead new RFC
0042 compliant
and options have
been introduced.
Nginx has been updated to stable version 1.20.0.
Now nginx uses the zlib-ng library by default.
New Services
The following new services were added since the last release:
Keycloak,
an open source identity and access management server with
support for OpenID Connect,
OAUTH 2.0 and
SAML
2.0.
See the Keycloak
section of the NixOS manual for more information.
Web Services Dynamic Discovery host daemon
Discourse, a
modern and open source discussion platform.
See the Discourse
section of the NixOS manual for more information.
Backward Incompatibilities
When upgrading from a previous release, please be aware of the following
incompatible changes:
If you are using to assign
custom names to network interfaces, this may stop working due to a change
in the initialisation of dhcpcd and systemd networkd. To avoid this, either
move them to or see the new
Assigning custom names section
of the NixOS manual for an example using networkd links.
The module has been removed.
It was broken since the switch to cgroups-v2.
The systemConfig kernel parameter is no longer added to boot loader entries. It has been unused since September 2010, but if do have a system generation from that era, you will now be unable to boot into them.
systemd-journal2gelf no longer parses json and expects the receiving system to handle it. How to achieve this with Graylog is described in this GitHub issue.
If the services.dbus module is enabled, then
the user D-Bus session is now always socket activated. The
associated options services.dbus.socketActivated
and services.xserver.startDbusSession have
therefore been removed and you will receive a warning if
they are present in your configuration. This change makes the
user D-Bus session available also for non-graphical logins.
The networking.wireless.iwd module now installs
the upstream-provided 80-iwd.link file, which sets the NamePolicy=
for all wlan devices to "keep kernel", to avoid race conditions
between iwd and networkd. If you don't want this, you can set
systemd.network.links."80-iwd" = lib.mkForce {}.
rubyMinimal was removed due to being unused and
unusable. The default ruby interpreter includes JIT support, which makes
it reference it's compiler. Since JIT support is probably needed by some
Gems, it was decided to enable this feature with all cc references by
default, and allow to build a Ruby derivation without references to cc,
by setting jitSupport = false; in an overlay. See
#90151
for more info.
Setting now also affects which keys will use.
WARNING: If you are using these options in combination do make sure that any key paths you use are present in !
The option has been renamed to
. The path of font directory
has also been changed to /run/current-system/sw/share/X11/fonts,
for consistency with other X11 resources.
A number of options have been renamed in the kicad interface. oceSupport
has been renamed to withOCE, withOCCT has been renamed
to withOCC, ngspiceSupport has been renamed to
withNgspice, and scriptingSupport has been renamed to
withScripting. Additionally, kicad/base.nix no longer
provides default argument values since these are provided by
kicad/default.nix.
The socket for the pdns-recursor module was moved from /var/lib/pdns-recursor
to /run/pdns-recursor to match upstream.
Paperwork was updated to version 2. The on-disk format slightly changed,
and it is not possible to downgrade from Paperwork 2 back to Paperwork
1.3. Back your documents up before upgrading. See this thread for more details.
PowerDNS has been updated from 4.2.x to 4.3.x. Please
be sure to review the Upgrade Notes
provided by upstream before upgrading. Worth specifically noting is that the service now runs
entirely as a dedicated pdns user, instead of starting as root
and dropping privileges, as well as the default socket-dir location changing from
/var/lib/powerdns to /run/pdns.
xfsprogs was update from 4.19 to 5.11. It now enables reflink support by default on filesystem creation.
Support for reflinks was added with an experimental status to kernel 4.9 and deemed stable in kernel 4.16.
If you want to be able to mount XFS filesystems created with this release of xfsprogs on kernel releases older than those, you need to format them
with mkfs.xfs -m reflink=0.
The uWSGI server is now built with POSIX capabilities. As a consequence,
root is no longer required in emperor mode and the service defaults to
running as the unprivileged uwsgi user. Any additional
capability can be added via the new option
.
The previous behaviour can be restored by setting:
= "root";
= "root";
=
{
uid = "uwsgi";
gid = "uwsgi";
};
Another incompatibility from the previous release is that vassals running under a
different user or group need to use immediate-{uid,gid}
instead of the usual uid,gid options.
btc1 has been abandoned upstream, and removed.
cpp_ethereum (aleth) has been abandoned upstream, and removed.
riak-cs package removed along with services.riak-cs module.
stanchion package removed along with services.stanchion module.
mutt has been updated to a new major version (2.x), which comes with
some backward incompatible changes that are described in the
release notes for Mutt 2.0.
vim switched to Python 3, dropping all Python 2 support.
boot.zfs.forceImportAll
previously did nothing, but has been fixed. However its default has been
changed to false to preserve the existing default
behaviour. If you have this explicitly set to true,
please note that your non-root pools will now be forcibly imported.
openafs now points to openafs_1_8,
which is the new stable release. OpenAFS 1.6 was removed.
MariaDB has been updated to 10.5.
Before you upgrade, it would be best to take a backup of your database and read
Incompatible Changes Between 10.4 and 10.5.
After the upgrade you will need to run mysql_upgrade.
The TokuDB storage engine dropped in mariadb 10.5 and removed in mariadb 10.6.
It is recommended to switch to RocksDB. See also TokuDB and
MDEV-19780: Remove the TokuDB storage engine.
The openldap module now has support for OLC-style
configuration, users of the configDir option may wish
to migrate. If you continue to use configDir, ensure that
olcPidFile is set to /run/slapd/slapd.pid.
As a result, extraConfig and extraDatabaseConfig
are removed. To help with migration, you can convert your slapd.conf
file to OLC configuration with the following script (find the location of this
configuration file by running systemctl status openldap, it is the
-f option.
TMPDIR=$(mktemp -d)
slaptest -f /path/to/slapd.conf $TMPDIR
slapcat -F $TMPDIR -n0 -H 'ldap:///???(!(objectClass=olcSchemaConfig))'
This will dump your current configuration in LDIF format, which should be
straightforward to convert into Nix settings. This does not show your schema
configuration, as this is unnecessarily verbose for users of the default schemas
and slaptest is buggy with schemas directly in the config file.
Amazon EC2 and OpenStack Compute (nova) images now re-fetch instance meta data and user data from the instance
metadata service (IMDS) on each boot. For example: stopping an EC2 instance, changing its user data, and
restarting the instance will now cause it to fetch and apply the new user data.
Specifically, /etc/ec2-metadata is re-populated on each boot. Some NixOS scripts that read
from this directory are guarded to only run if the files they want to manipulate do not already exist, and so
will not re-apply their changes if the IMDS response changes. Examples: root's SSH key is
only added if /root/.ssh/authorized_keys does not exist, and SSH host keys are only set from
user data if they do not exist in /etc/ssh.
The rspamd services is now sandboxed. It is run as
a dynamic user instead of root, so secrets and other files may have to
be moved or their permissions may have to be fixed. The sockets are now
located in /run/rspamd instead of /run.
Enabling the Tor client no longer silently also enables and
configures Privoxy, and the
services.tor.client.privoxy.enable option has
been removed. To enable Privoxy, and to configure it to use
Tor's faster port, use the following configuration:
= true;
= true;
The services.tor module has a new exhaustively typed option following RFC 0042; backward compatibility with old options has been preserved when aliasing was possible.
The corresponding systemd service has been hardened,
but there is a chance that the service still requires more permissions,
so please report any related trouble on the bugtracker.
Onion services v3 are now supported in .
A new option as been introduced for allowing connections on all the TCP ports configured.
The options services.slurm.dbdserver.storagePass
and services.slurm.dbdserver.configFile have been removed.
Use services.slurm.dbdserver.storagePassFile instead to provide the database password.
Extra config options can be given via the option services.slurm.dbdserver.extraConfig. The actual configuration file is created on the fly on startup of the service.
This avoids that the password gets exposed in the nix store.
The wafHook hook does not wrap Python anymore.
Packages depending on wafHook need to include any Python into their nativeBuildInputs.
Starting with version 1.7.0, the project formerly named CodiMD
is now named HedgeDoc.
New installations will no longer use the old name for users, state directories and such, this needs to be considered when moving state to a more recent NixOS installation.
Based on , existing installations will continue to work.
The fish-foreign-env package has been replaced with
fishPlugins.foreign-env, in which the fish
functions have been relocated to the
vendor_functions.d directory to be loaded automatically.
The prometheus json exporter is now managed by the prometheus community. Together with additional features
some backwards incompatibilities were introduced.
Most importantly the exporter no longer accepts a fixed command-line parameter to specify the URL of the
endpoint serving JSON. It now expects this URL to be passed as an URL parameter, when scraping the exporter's
/probe endpoint.
In the prometheus scrape configuration the scrape target might look like this:
http://some.json-exporter.host:7979/probe?target=https://example.com/some/json/endpoint
Existing configuration for the exporter needs to be updated, but can partially be re-used.
Documentation is available in the upstream repository and a small example for NixOS is available
in the corresponding NixOS test.
These changes also affect , which is
just a preconfigured instance of the json exporter.
For more information, take a look at the
official documentation of the json_exporter.
Androidenv was updated, removing the includeDocs and lldbVersions
arguments. Docs only covered a single version of the Android SDK, LLDB is now bundled with the NDK,
and both are no longer available to download from the Android package repositories. Additionally, since
the package lists have been updated, some older versions of Android packages may not be bundled. If you
depend on older versions of Android packages, we recommend overriding the repo.
Android packages are now loaded from a repo.json file created by parsing Android repo XML files. The arguments
repoJson and repoXmls have been added to allow overriding the built-in
androidenv repo.json with your own. Additionally, license files are now written to allow compatibility
with Gradle-based tools, and the extraLicenses argument has been added to accept more
SDK licenses if your project requires it. See the androidenv documentation for more details.
The attribute mpi is now consistently used to
provide a default, system-wide MPI implementation.
The default implementation is openmpi, which has been used before by
all derivations affects by this change.
Note that all packages that have used mpi ? null in the input
for optional MPI builds, have been changed to the boolean input paramater
useMpi to enable building with MPI.
Building all packages with mpich instead
of the default openmpi can now be achived like this:
self: super:
{
mpi = super.mpich;
}
The Searx module has been updated with the ability to configure the
service declaratively and uWSGI integration.
The option services.searx.configFile has been renamed
to for consistency with
the new . In addition, the
searx uid and gid reservations have been removed
since they were not necessary: the service is now running with a
dynamically allocated uid.
The libinput module has been updated with the ability to configure mouse and touchpad settings separately.
The options in services.xserver.libinput have been renamed to services.xserver.libinput.touchpad,
while there is a new services.xserver.libinput.mouse for mouse related configuration.
Since touchpad options no longer apply to all devices, you may want to replicate your touchpad configuration in
mouse section.
ALSA OSS emulation (sound.enableOSSEmulation) is now disabled by default.
Thinkfan as been updated to 1.2.x, which comes with a
new YAML based configuration format. For this reason, several NixOS options
of the thinkfan module have been changed to non-backward compatible types.
In addition, a new option has
been added.
Please read the
thinkfan documentation before updating.
Adobe Flash Player support has been dropped from the tree. In particular,
the following packages no longer support it:
chromiumfirefoxqt48qt5.qtwebkit
Additionally, packages flashplayer and
hal-flash were removed along with the
services.flashpolicyd module.
The security.rngd module has been removed.
It was disabled by default in 20.09 as it was functionally redundant
with krngd in the linux kernel. It is not necessary for any device that the kernel recognises
as an hardware RNG, as it will automatically run the krngd task to periodically collect random
data from the device and mix it into the kernel's RNG.
The default SMTP port for GitLab has been changed to
25 from its previous default of
465. If you depended on this default, you
should now set the
option.
The default version of ImageMagick has been updated from 6 to 7.
You can use imagemagick6,
imagemagick6_light, and
imagemagick6Big if you need the older version.
no longer uses the deprecated cirrus and vesa device dependent X drivers by default. It also enables both amdgpu and nouveau drivers by default now.
The kindlegen package is gone, because it is no longer supported or hosted by Amazon. Sadly, its replacement, Kindle Previewer, has no Linux support. However, there are other ways to generate MOBI files. See the discussion for more info.
The apacheKafka packages are now built with
version-matched JREs. Versions 2.6 and above, the ones that recommend it,
use jdk11, while versions below remain on jdk8. The NixOS service has
been adjusted to start the service using the same version as the package,
adjustable with the new
services.apache-kafka.jre
option. Furthermore, the default list of
services.apache-kafka.jvmOptions
have been removed. You should set your own according to the
upstream documentation
for your Kafka version.
The kodi package has been modified to allow concise addon management. Consider
the following configuration from previous releases of NixOS to install kodi,
including the kodiPackages.inputstream-adaptive and kodiPackages.vfs-sftp
addons:
environment.systemPackages = [
pkgs.kodi
];
nixpkgs.config.kodi = {
enableInputStreamAdaptive = true;
enableVFSSFTP = true;
};
All Kodi config flags have been removed, and as a result the above configuration
should now be written as:
environment.systemPackages = [
(pkgs.kodi.withPackages (p: with p; [
inputstream-adaptive
vfs-sftp
]))
];
now includes the nano package.
If pkgs.nano is not added to the list,
make sure another editor is installed and the EDITOR
environment variable is set to it.
Environment variables can be set using .
changed type to a list of paths, required for specifiyng multiple data directories for using with erasure coding.
Currently, the service doesn't enforce nor checks the correct number of paths to correspond to minio requirements.
All CUDA toolkit versions prior to CUDA 10 have been removed.
The kbdKeymaps package was removed since dvp and neo
are now included in kbd.
If you want to use the Programmer Dvorak Keyboard Layout, you have to use
dvorak-programmer in
now instead of dvp.
In it's still dvp.
The babeld service is now being run as an unprivileged user. To achieve that the module configures
skip-kernel-setup true and takes care of setting forwarding and rp_filter sysctls by itself as well
as for each interface in services.babeld.interfaces.
Other Notable Changesstdenv.lib has been deprecated and will break
eval in 21.11. Please use pkgs.lib instead.
See #108938
for details.
The Mailman NixOS module (services.mailman) has a new
option , defaulting
to true, that controls integration with Postfix.
If this option is disabled, default MTA config becomes not set and you
should set the options in services.mailman.settings.mta
according to the desired configuration as described in
Mailman documentation.
The default-version of nextcloud is nextcloud21.
Please note that it's not possible to upgrade nextcloud
across multiple major versions! This means that it's e.g. not possible to upgrade
from nextcloud18 to nextcloud20 in a single deploy and
most 20.09 users will have to upgrade to nextcloud20
first.
The package can be manually upgraded by setting
to nextcloud21.
The setting defaults to 127.0.0.1 now, making Redis listen on the loopback interface only, and not all public network interfaces.
NixOS now emits a deprecation warning if systemd's StartLimitInterval setting is used in a serviceConfig section instead of in a unitConfig; that setting is deprecated and now undocumented for the service section by systemd upstream, but still effective and somewhat buggy there, which can be confusing. See #45785 for details.
All services should use or StartLimitIntervalSec in instead.
The Unbound DNS resolver service (services.unbound) has been refactored to allow reloading, control sockets and to fix startup ordering issues.
It is now possible to enable a local UNIX control socket for unbound by setting the
option.
Previously we just applied a very minimal set of restrictions and
trusted unbound to properly drop root privs and capabilities.
As of this we are (for the most part) just using the upstream
example unit file for unbound. The main difference is that we start
unbound as unbound user with the required capabilities instead of
letting unbound do the chroot & uid/gid changes.
The upstream unit configuration this is based on is a lot stricter with
all kinds of permissions then our previous variant. It also came with
the default of having the Type set to notify, therefore we are now also
using the unbound-with-systemd package here. Unbound will start up,
read the configuration files and start listening on the configured ports
before systemd will declare the unit active (running).
This will likely help with startup order and the occasional race condition during system
activation where the DNS service is started but not yet ready to answer
queries. Services depending on nss-lookup.target or unbound.service
are now be able to use unbound when those targets have been reached.
Additionally to the much stricter runtime environment the
/dev/urandom mount lines we previously had in the code (that
randomly failed during the stop-phase) have been removed as systemd will take care of those for us.
The preStart script is now only required if we enabled the trust
anchor updates (which are still enabled by default).
Another benefit of the refactoring is that we can now issue reloads via
either pkill -HUP unbound and systemctl reload unbound to reload the
running configuration without taking the daemon offline. A prerequisite
of this was that unbound configuration is available on a well known path
on the file system. We are using the path /etc/unbound/unbound.conf as that is the
default in the CLI tooling which in turn enables us to use
unbound-control without passing a custom configuration location.
The services.dnscrypt-proxy2 module now takes the upstream's example configuration and updates it with the user's settings.
An option has been added to restore the old behaviour if you prefer to declare the configuration from scratch.
NixOS now defaults to the unified cgroup hierarchy (cgroupsv2).
See the Fedora Article for 31
for details on why this is desirable, and how it impacts containers.
If you want to run containers with a runtime that does not yet support cgroupsv2,
you can switch back to the old behaviour by setting
= false;
and rebooting.
PulseAudio was upgraded to 14.0, with changes to the handling of default sinks.
See its release notes.
GNOME users may wish to delete their ~/.config/pulse due to the changes to stream routing
logic. See PulseAudio bug 832
for more information.
The zookeeper package does not provide
zooInspector.sh anymore, as that "contrib" has
been dropped from upstream releases.
In the ACME module, the data used to build the hash for the account
directory has changed to accomodate new features to reduce account
rate limit issues. This will trigger new account creation on the first
rebuild following this update. No issues are expected to arise from this,
thanks to the new account creation handling.
now always ensures home directory permissions to be 0700.
Permissions had previously been ignored for already existing home directories, possibly leaving them readable by others.
The option's description was incorrect regarding ownership management and has been simplified greatly.
When defining a new user, one of and is now required.
This is to prevent accidentally giving a UID above 1000 to system users, which could have unexpected consequences, like running user activation scripts for system users.
Note that users defined with an explicit UID below 500 are exempted from this check, as has no effect for those.
The security.apparmor module,
for the AppArmor
Mandatory Access Control system,
has been substantialy improved along with related tools,
so that module maintainers can now more easily write AppArmor profiles for NixOS.
The most notable change on the user-side is the new option ,
replacing the previous profiles option
to provide a way to disable a profile
and to select whether to confine in enforce mode (default)
or in complain mode (see journalctl -b --grep apparmor).
Security-minded users may also want to enable ,
at the cost of having some of their processes killed
when updating to a NixOS version introducing new AppArmor profiles.
The GNOME desktop manager once again installs gnome3.epiphany by default.
NixOS now generates empty /etc/netgroup.
/etc/netgroup defines network-wide groups and may affect to setups using NIS.
Platforms, like stdenv.hostPlatform, no longer have a platform attribute.
It has been (mostly) flattened away:
platform.gcc is now gccplatform.kernel* is now linux-kernel.*
Additionally, platform.kernelArch moved to the top level as linuxArch to match the other *Arch variables.
The platform grouping of these things never meant anything, and was just a historial/implementation artifact that was overdue removal.
services.restic now uses a dedicated cache directory for every backup defined in services.restic.backups. The old global cache directory, /root/.cache/restic, is now unused and can be removed to free up disk space.
isync: The isync compatibility wrapper was removed and the Master/Slave
terminology has been deprecated and should be replaced with Far/Near in the configuration file.
The nix-gc service now accepts randomizedDelaySec (default: 0) and persistent (default: true) parameters.
By default nix-gc will now run immediately if it would have been triggered at least
once during the time when the timer was inactive.
The rustPlatform.buildRustPackage function is split into several hooks:
cargoSetupHook to set up vendoring for Cargo-based projects,
cargoBuildHook to build a project using Cargo,
cargoInstallHook to install a project using Cargo, and
cargoCheckHook to run tests in Cargo-based projects. With this change,
mixed-language projects can use the relevant hooks within builders other than
buildRustPackage. However, these changes also required several API changes to
buildRustPackage itself:
The target argument was removed. Instead, buildRustPackage
will always use the same target as the C/C++ compiler that is used.
The cargoParallelTestThreads argument was removed. Parallel tests are
now disabled through dontUseCargoParallelTests.
The rustPlatform.maturinBuildHook hook was added. This hook can be used
with buildPythonPackage to build Python packages that are written in Rust
and use Maturin as their build tool.
Kubernetes has deprecated docker as container runtime.
As a consequence, the Kubernetes module now has support for configuration of custom remote container runtimes and enables containerd by default.
Note that containerd is more strict regarding container image OCI-compliance.
As an example, images with CMD or ENTRYPOINT defined as strings (not lists) will fail on containerd, while working fine on docker.
Please test your setup and container images with containerd prior to upgrading.
The GitLab module now has support for automatic backups. A
schedule can be set with the
services.gitlab.backup.startAt
option.
Prior to this release, systemd would also read system units from an undocumented /etc/systemd-mutable/system path.
This path has been dropped from the defaults. That path (or others) can be re-enabled by adding it to the
boot.extraSystemdUnitPaths list.
PostgreSQL 9.5 is scheduled EOL during the 21.05 life cycle and has been removed.