Appendix A. Release Notes

This release of Nixpkgs requires macOS Big Sur 11.3 or newer, as announced in the 24.11 release notes. We cannot guarantee that packages will continue to work on older versions of macOS. Future Nixpkgs releases will only support macOS versions supported by Apple; this means that Nixpkgs 25.11 will require macOS Sonoma 14 or newer. Users on old macOS versions should consider upgrading to a supported version (potentially using OpenCore Legacy Patcher for old hardware) or installing NixOS. If neither of those options are viable and you require new versions of software, MacPorts supports versions back to Mac OS X Snow Leopard 10.6.

The default kernel package has been updated from 6.6 to 6.12. All supported kernels remain available.

GCC has been updated from GCC 13 to GCC 14. This introduces some backwards‐incompatible changes; see the upstream porting guide for details.

The default GHC version has been updated from 9.6 to 9.8. haskellPackages also uses Stackage LTS 23 (instead of LTS 22) as a baseline. We aim to remove the old GHC versions 8.10, 9.0 and 9.2 in the next release in accordance with the new GHC deprecation policy.

LLVM has been updated from LLVM 16 (on Darwin) and LLVM 18 (on other platforms) to LLVM 19. This introduces some backwards‐incompatible changes; see the upstream release notes for details.

The Factor programming language packages were reworked. factor-lang-scope is now named factorPackages and provides a buildFactorApplication function to deploy Factor programs as binaries. It has also received proper documentation in the Nixpkgs manual.

Emacs has been updated to 30.1. This introduces some backwards‐incompatible changes; see the NEWS for details. NEWS can been viewed from Emacs by typing C-h n, or by clicking Help->Emacs News from the menu bar. It can also be browsed online.

The default openexr version has been updated to 3.2.4.

The default PHP version has been updated to 8.4.

The default Erlang OTP version has been updated to 27.

The default Elixir version has been updated to 1.18.

apptainer and singularity deprecate the workaround of overriding vendorHash and related attributes via <pkg>.override, in favour of the unified overriding of the same group of attributes via <pkg>.overrideAttrs. The compatibility layer will be removed in future releases.

squid has been updated to version 7, this release includes multiple breaking changes, like ESI removal. For more information, check the release notes.

postgresql and libpq don’t provide pg_config by default anymore. Instead, pg_config is available via postgresql.pg_config or libpq.pg_config. This allowed implementing it as a shell script, which can be built for both the build and host systems when cross-compiling. If your build fails to find pg_config, add postgresql.pg_config or libpq.pg_config to nativeBuildInputs.

The no-broken-symlinks hook was added to catch builds containing dangling or reflexive symlinks, as these are indicative of problems with packaging. The hook can be disabled by providing dontCheckForBrokenSymlinks = true; as an argument to mkDerivation. For more information, check the docs or see this PR.

opensmtpd-extras has been deprecated by upstream and is not compatible with OpenSMTPD 7.6.0 or later. The package has been removed in favor of a set of new opensmtpd-table-* packages.

postsrsd upgraded to >= 2.0.0, with some different behaviors and configuration settings. Notably, it now defaults to listening on a socket rather than a port. See Migrating from version 1.x and Postfix Setup for details.

The hand written perlPackages.SearchXapian bindings have been dropped in favor of the (mostly compatible) perlPackages.Xapian.

The config triple for aarch64-darwin has been changed from aarch64-apple-darwin to arm64-apple-darwin to match the Apple toolchain and LLVM’s expectations.

The electron packages will now provide their headers (available via electron.headers) in extracted form instead of in a tarball.

The ephemeral package was removed due to upstream archival in early 2022.

The vocal package was removed due to upstream archival. The upstream developer suggests using gnome-podcasts or kasts instead.

testers.shellcheck now warns when name is not provided. The name argument will become mandatory in a future release.

GIMP 3.0 available as gimp3.

grafana-agent and services.grafana-agent have been removed in favor of Grafana Alloy (grafana-alloy and services.alloy), as they depend on an EOL compiler version and will become EOL during the 25.05 lifecycle. Grafana recommends migrating to grafana-alloy (services.alloy). See https://grafana.com/docs/alloy/latest/set-up/migrate/ for details.

xdragon package has been renamed to dragon-drop. xdragon is an alias to dragon-drop and the package still provides bin/xdragon. bin/dragon is no longer supplied.

The nixLog* family of functions made available through the standard environment have been rewritten to prefix messages with both the debug level and the function name of the caller. The nixLog function, which logs unconditionally, was also re-introduced and modified to prefix messages with the function name of the caller. For more information, see this PR.

postgresql’s pythonSupport argument has been changed. It is now enabled by default, but to use PL/Python the extension needs to be added explicitly with postgresql.withPackages. If you were using postgresql.override { pythonSupport = true; } before, change it to postgresql.withPackages (ps: [ ps.plpython3 ]). The same applies to perlSupport/plperl and tclSupport/pltcl respectively.

Rust packages will need to regenerate their cargoHash. Cargo 1.84.0 changed the format of cargo vendor output, which invalidated all existing rustPlatform.fetchCargoTarball hashes. To preserve Nix’s invariants, it has been replaced with rustPlatform.fetchCargoVendor, an independent implementation prioritizing format stability. rustPlatform.buildRustPackage now uses rustPlatform.fetchCargoVendor by default; a hash mismatch error is expected in third‐party Rust packages when updating to Nixpkgs 25.05. Packages wishing to maintain compatibility with Nixpkgs 24.11 must set useFetchCargoVendor to true explicitly. rustPlatform.importCargoLock may also be appropriate in some circumstances.

cassandra_3_0 and cassandra_3_11 have been removed as they have reached end-of-life. Please update to cassandra_4. See the changelog for more information about the upgrade process.

mariadb_105 has been removed as it has reached end-of-life in 2025-06. Please update to mariadb_106.

NetBox was updated to >= 4.2.0. Have a look at the breaking changes of the 4.1 release and the 4.2 release, make the required changes to your database, if needed, then upgrade by setting services.netbox.package = pkgs.netbox_4_2; in your configuration.

NetBox version 4.0.X available as netbox_4_0 was removed. Please upgrade to 4.2.

golangci-lint has reached v2. Please read the changes and view the migration guide here.

i3status-rust-package no longer enables notmuch by default. It can be enabled via withNotmuch.

ocis-bin has been renamed to ocis_5-bin. Future versions will have the major version suffix.

All support for 32‐bit Darwin systems has been dropped.

substituteAll and substituteAllFiles have been deprecated in favor of replaceVars and will be removed in the next release.

Default ICU version updated from 74 to 76

The packages signald, signaldctl and purple-signald have been dropped as they are unmaintained upstream and have been incompatible with the official Signal servers for a long while.

Apache Kafka was updated to >= 4.0.0. Please note that this is the first release which operates entirely without Apache ZooKeeper support, and all clusters need to be migrated to KRaft mode. See the release announcement for more details.

ast-grep remove sg command to prevent conflict with sg command from shadow-utils. If you need legacy sg command compatibility with old code, you can use ast-grep.override { enableLegacySg = true; }

rename package wtf to wtfutil.

python3Packages.beancount was updated to 3.1.0. Previous major version remains available as python3Packages.beancount_2.

wastebin has been updated to 3.0.0. See the Changelog for breaking changes to the configuration.

binwalk was updated to 3.1.0, which has been rewritten in rust. The python module is no longer available. See the release notes of 3.1.0 for more information.

pkgs.nextcloud28 and pkgs.nextcloud29 have been removed since they are out of support upstream.

centrifugo was updated to v6, which uses a new config format. See upstream documentation for migration.

teleport has been upgraded from major version 16 to major version 17. Refer to upstream upgrade instructions and release notes for v17.

Emacs lisp build helpers, such as emacs.pkgs.melpaBuild, now enables __structuredAttrs by default. Environment variables have to be passed via the env attribute.

buildGoModule now passes environment variables via the env attribute. CGO_ENABLED should now be specified with env.CGO_ENABLED when passing to buildGoModule. Direct specification of CGO_ENABLED is now redirected by a compatibility layer with a warning, but will become an error in future releases.

Go-related environment variables previously shadowed by buildGoModule now results in errors when specified directly. Such variables include GOOS and GOARCH.

Third-party projects supporting both stable and unstable channels could detect this change through the absence of the CGO_ENABLED function argument in buildGoModule (!((lib.functionArgs buildGoModule) ? CGO_ENABLED)).

buildGoPackage has been removed. Use buildGoModule instead. See the Go section in the nixpkgs manual for details.

buildGoModule now supports a goSum attribute (null by default) to optionally provide a path to go.sum and correctly enabling rebuilds when the file changes.

top-level playwright now refers to the github Microsoft/playwright package instead of the python tester launcher. You can still refer to the python launcher via python3Packages.toPythonApplication python3Packages.playwright

The representation of the flags attributes as shell/environment variables for most Python building setup hooks are now the same as stdenv.mkDerivation and other build helpers – they are space-separated environment variables when __structuredAttrs = false and Bash arrays when __structuredAttrs = true, and are concatenated to the command without Bash-evaluation. The following behaviour changes are introduced during the conversion:

The haka package and module has been removed because the package was broken and unmaintained for 9 years.

The gsignond package, plugins and module have been removed because they were unmaintained for 6 years.

strawberry has been updated to 1.2, which drops support for the VLC backend and Qt 5. The strawberry-qt5 package and withGstreamer/withVlc override options have been removed due to this.

nezha and its agent nezha-agent have been updated to v1, which contains breaking changes. See the official wiki for more details.

ps3-disc-dumper was updated to 4.2.5, which removed the CLI project and now exclusively offers the GUI

kmonad is now hardened by default using common systemd settings. If KMonad is used to execute shell commands, hardening may make some of them fail. In that case, you can disable hardening using services.kmonad.keyboards.<name>.enableHardening option.

isd was updated from 0.2.0 to 0.5.1, the new version may crash with a previously generated config, try moving or deleting ~/.config/isd/schema.json.

uwsgi no longer supports Python 2 plugins.

Support for CUDA 10 has been dropped, as announced in the 24.11 release notes.

mepo was updated to version 1.3.3. The manual page was removed, a new JSON API was introduced to replace Mepolang for configuration, and a few default key bindings were changed. See the 1.3.0 changelog for more details.

mkBinaryCache now defaults to using zstd compression for the binary caches it creates. The previous xz compression method can be used by passing compression = "xz";.

nodejs_latest was updated from 23.x to 24.x. nodejs_23 has been removed in favor of nodejs_24.

nodejs_18 package was removed due to upstream End-of-Life in April 2025.

nodePackages."@commitlint/config-conventional" has been removed, as it is a library, and projects should depend on it instead.

zigbee2mqtt is now available in version 2.x as zigbee2mqtt_2. In NixOS 25.11 we’ll remove zigbee2mqtt_1 and default to zigbee2mqtt_2. See the breaking changes announcement for 2.0.0.

nodePackages.vls has been deprecated, as the upstream consumer of it, vetur, has been deprecated by upstream. Upstream suggests migrating to Volar for Vue LSP tooling instead.

nodePackages.create-react-native-app has been removed, as it is deprecated. Upstream suggests using a framework for React Native apps instead.

nodePackages.insect has been removed, as it’s deprecated by upstream. The suggested replacement is numbat.

nodePackages.webpack-dev-server has been removed, as it should be installed in projects that use it instead.

nodePackages.copy-webpack-plugin has been removed, as it should be installed in projects that use it instead.

himalaya has been updated from v1.0.0-beta.4 to v1.1.0, which introduces breaking changes. Check out the release notes for details.

linuxPackages.nvidiaPackages.dc_520 has been removed since it is marked broken and there are better newer alternatives.

pnpm was updated to version 10. If your project is incompatible, you can install the previous version from the package attribute pnpm_9.

dwarf-fortress-packages now only contains one minor version for each major version since version 0.44. Saves should still be compatible, but you may have to change which minor version you were using if it was one other than the newest.

tpm2-pkcs11 now is compiled without abrmd (Access Broker and Resource Manager Daemon) support by default, preferring the kernel resource manager. Use tpm2-pkcs11.abrmd if you would like a version with abrmd support. Note that the NixOS module picks the correct one automatically based on security.tpm2.abrmd.

zig_0_9 and zig_0_10 have been removed, you should upgrade to zig_0_13 (also available as just zig), zig_0_12 or zig_0_11 instead.

webpack-cli was updated to major version 6, which has breaking changes from the previous version 5.1.4. See the upstream release notes for details on these changes.

minetest has been renamed to luanti to match the upstream name change but aliases have been added. The new name hasn’t resulted in many changes as of yet but older references to minetest should be sunset. See the new name announcement for more details.

poac has been renamed to cabinpkg to match the upstream name change but an alias has been added. See the new name announcement for more details.

serious-sans has been removed because upstream changed its name to Serious Shanns, which is not currently packaged.

racket_7_9 has been removed, as it is insecure. It is recommended to use Racket 8 instead.

rofi has been updated from 1.7.5 to 1.7.6 which introduces some breaking changes to binary plugins, and also contains a lot of new features and bug fixes. This is highlighted because the patch version bump does not indicate the volume of changes by itself. See the upstream release notes for the full list of changes.

ente-auth now uses the name enteauth for its binary. The previous name was ente_auth.

foundationdb was upgraded to 7.3.

fluxus has been removed, as it depends on racket_7_9 and had no updates in 9 years.

meilisearch has been upgraded from 1.11.3 to 1.14.0, which requires manually dumping and importing the data. See Meilisearch’s upgrade guide for more information.

sm64ex-coop has been removed as it was archived upstream. Consider migrating to sm64coopdx.

tldr now uses tldr-python-client instead of tldr-c-client which is unmaintained.

renovate was updated to v39. See the upstream release notes for breaking changes. Like upstream’s docker images, renovate now runs on NodeJS 22.

The behavior of the networking.nat.externalIP and networking.nat.externalIPv6 options has been changed. networking.nat.forwardPorts now only forwards packets destined for the specified IP addresses.

python3Packages.bpycv has been removed due to being incompatible with Blender 4 and unmaintained.

python3Packages.jaeger-client was removed because it was deprecated upstream. OpenTelemetry is the recommended replacement.

nodePackages.meshcommander has been removed, as the package was deprecated by Intel.

The default version of z3 has been updated from 4.8 to 4.15, and all old versions have been dropped. Note that fstar still depends on specific versions, and maintains them as overrides.

prometheus has been updated from 2.55.0 to 3.1.0. Read the release blog post and migration guide.

kanata was updated to v1.8.0, which introduces several breaking changes. See the release notes of v1.7.0 and v1.8.0 for more information.

authelia version 4.39.0 has made changes on the default claims for ID Tokens, to mirror the standard claims from the specification. This change may affect some clients in unexpected ways, so manual intervention may be required. Read the release notes, along with the guide to work around issues that may be encountered.

ags was updated to v2, which is just a CLI for Astal now. Components are available as a different package set astal.*. If you want to use v1, it is available as ags_1 package.

See the release notes of v2.0.0 for more information.

nodePackages.expo-cli has been removed, as it was deprecated by upstream. The suggested replacement is the npx expo command.

open-policy-agent has has been updated to 1.0.0+. This major release makes the rego.v1 syntax the default. This is a breaking change for those using v0 Rego. See the upgrade documentation for more details. For those unable to upgrade yet, there is a v0 compatibility mode available too.

helmfile was updated to v1.0.0, which introduces several breaking changes. See the release notes of v1.0.0 for more information.

vscode-utils.buildVscodeExtension now requires pname as an argument

nerdfonts has been separated into individual font packages under the namespace nerd-fonts. The directories for font files have changed from $out/share/fonts/{opentype,truetype}/NerdFonts to $out/share/fonts/{opentype,truetype}/NerdFonts/<fontDirName>, where <fontDirName> can be found in the official website as the titles in preview images, with the “Nerd Font” suffix and any whitespaces trimmed. Configuration changes are required, see build output.

retroarch has been refactored and the older retroarch.override { cores = [ ... ]; } to create a RetroArch derivation with custom cores doesn’t work anymore, use retroarch.withCores (cores: [ ... ]) instead. If you need more customization (e.g.: custom settings), use wrapRetroArch instead.

borgmatic has been updated from 1.8.14 to 1.9.5, please check the upstream changelog for more details, especially for a few possibly breaking changes noted in the 1.9.0 changelog.

nodePackages.ganache has been removed, as the package has been deprecated by upstream.

matomo now defaults to version 5 (previously available as matomo_5). Version 4 has been removed as it reached EOL on December 19, 2024.

matomo-beta has been removed as the version of the matomo package can now be easily overridden through overrideAttrs (see PR #374022)

docker_24 has been removed, as it was EOL with vulnerabilities since June 08, 2024.

Emacs 28 and 29 have been removed.

Emacs 28 Macport has been removed, while CVEs of Emacs 29 Macport are patched.

containerd has been updated to v2, which contains breaking changes. See the containerd 2.0 documentation for more details.

nodePackages.stackdriver-statsd-backend has been removed, as the StackDriver service has been discontinued by Google, and therefore the package no longer works.

python3Packages.opentracing has been removed due to being unmaintained upstream. OpenTelemetry is the recommended replacement.

the notmuch vim plugin now lives in a separate output of the notmuch package. Installing notmuch will not bring the notmuch vim package anymore, add vimPlugins.notmuch-vim to your (Neo)vim configuration if you want the vim plugin.

prisma and prisma-engines have been updated to version 6.7.0, which introduces several breaking changes. See the Prisma ORM upgrade guide for more information.

dependency-track no longer bundes the UI inside the jar. This bundling functionality is deprecated by upstream and causes UI assets not being served after weeks of runtime.

nq was updated to 1.0, which renames the fq and tq utilities to nqtail and nqterm respectively.

zf was updated to 0.10.2, which includes breaking changes from the 0.10.0 release. zf no longer does Unicode normalization of the input and no longer supports terminal escape sequences in the ZF_PROMPT environment variable.

confluent-cli was updated from 3.60.0 to 4.16.0, which includes several breaking changes as detailed in Confluent’s release notes.

siduck76-st has been renamed to st-snazzy, like the project’s flake.

python3Packages.jax now directly depends on python3Packages.jaxlib. As a result, packages that depend on jax no longer need to include jaxlib to their dependencies. There is also a breaking change in the handling of CUDA. Instead of using a CUDA compatible jaxlib as before, you can use plugins like python3Packages.jax-cuda12-plugin.

i18n module improvements:

titaniumenv, titanium, and titanium-alloy have been removed due to lack of maintenance in Nixpkgs .

androidenv has been improved:

dwarf-fortress audio now works again. Additionally, the dfhack and dwarf-fortress-full packages are now exposed at toplevel, making it easier to install and play Dwarf Fortress. Note that dwarf-fortress-full is the Nixpkgs equivalent of the Dwarf Fortress Lazy Pack.

gerbera now has wavpack support.

GOverlay has been updated to 1.2, please check the upstream changelog for more details.

tpm2-pkcs11 now has the variant tpm2-pkcs11-fapi, which has been patched to default to the Feature API backend. It has also been split into tpm2-pkcs11-esapi, which only supports the older Enhanced System API backend. Note the differences, and that tpm2-pkcs11 itself still needs TPM2_PKCS11_BACKEND=fapi exported in order to use the Feature API, whereas tpm2-pkcs11-fapi does not, and tpm2-pkcs11-esapi just does not support fapi entirely.

For matrix homeserver Synapse we are now following the upstream recommendation to enable jemalloc as the memory allocator by default.

In dovecot package removed hard coding path to module directory.

signal-desktop has been migrated to a from source build. No state migration is necessary. In case there’s no working source build available (like on Darwin), the the binary build is still available at signal-desktop-bin.

ddclient was updated from 3.11.2 to 4.0.0 Release notes