nixpkgs/nixos/doc/manual/release-notes/rl-2111.section.md

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# Release 21.11 (“?”, 2021.11/??) {#sec-release-21.11}
In addition to numerous new and upgraded packages, this release has the following highlights:
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- Support is planned until the end of June 2022, handing over to 22.05.
## Highlights {#sec-release-21.11-highlights}
- PHP now defaults to PHP 8.0, updated from 7.4.
- kOps now defaults to 1.21.0, which uses containerd as the default runtime.
- `python3` now defaults to Python 3.9, updated from Python 3.8.
- PostgreSQL now defaults to major version 13.
## New Services {#sec-release-21.11-new-services}
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- [btrbk](https://digint.ch/btrbk/index.html), a backup tool for btrfs subvolumes, taking advantage of btrfs specific capabilities to create atomic snapshots and transfer them incrementally to your backup locations. Available as [services.btrbk](options.html#opt-services.brtbk.instances).
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- [clipcat](https://github.com/xrelkd/clipcat/), an X11 clipboard manager written in Rust. Available at [services.clipcat](options.html#o
pt-services.clipcat.enable).
- [geoipupdate](https://github.com/maxmind/geoipupdate), a GeoIP database updater from MaxMind. Available as [services.geoipupdate](options.html#opt-services.geoipupdate.enable).
- [Kea](https://www.isc.org/kea/), ISCs 2nd generation DHCP and DDNS server suite. Available at [services.kea](options.html#opt-services.kea).
- [sourcehut](https://sr.ht), a collection of tools useful for software development. Available as [services.sourcehut](options.html#opt-services.sourcehut.enable).
- [ucarp](https://download.pureftpd.org/pub/ucarp/README), an userspace implementation of the Common Address Redundancy Protocol (CARP). Available as [networking.ucarp](options.html#opt-networking.ucarp.enable).
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- Users of flashrom should migrate to [programs.flashrom.enable](options.html#opt-programs.flashrom.enable) and add themselves to the `flashrom` group to be able to access programmers supported by flashrom.
- [vikunja](https://vikunja.io), a to-do list app. Available as [services.vikunja](#opt-services.vikunja.enable).
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- [snapraid](https://www.snapraid.it/), a backup program for disk arrays.
Available as [snapraid](#opt-snapraid.enable).
- [Hockeypuck](https://github.com/hockeypuck/hockeypuck), a OpenPGP Key Server. Available as [services.hockeypuck](#opt-services.hockeypuck.enable).
- [buildkite-agent-metrics](https://github.com/buildkite/buildkite-agent-metrics), a command-line tool for collecting Buildkite agent metrics, now has a Prometheus exporter available as [services.prometheus.exporters.buildkite-agent](#opt-services.prometheus.exporters.buildkite-agent.enable).
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## Backward Incompatibilities {#sec-release-21.11-incompatibilities}
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- The `staticjinja` package has been upgraded from 1.0.4 to 3.0.1
- `services.geoip-updater` was broken and has been replaced by [services.geoipupdate](options.html#opt-services.geoipupdate.enable).
- PHP 7.3 is no longer supported due to upstream not supporting this version for the entire lifecycle of the 21.11 release.
- Those making use of `buildBazelPackage` will need to regenerate the fetch hashes (preferred), or set `fetchConfigured = false;`.
- `consul` was upgraded to a new major release with breaking changes, see [upstream changelog](https://github.com/hashicorp/consul/releases/tag/v1.10.0).
- fsharp41 has been removed in preference to use the latest dotnet-sdk
- The following F#-related packages have been removed for being unmaintaned. Please use `fetchNuGet` for specific packages.
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- ExtCore
- Fake
- Fantomas
- FsCheck
- FsCheck262
- FsCheckNunit
- FSharpAutoComplete
- FSharpCompilerCodeDom
- FSharpCompilerService
- FSharpCompilerTools
- FSharpCore302
- FSharpCore3125
- FSharpCore4001
- FSharpCore4117
- FSharpData
- FSharpData225
- FSharpDataSQLProvider
- FSharpFormatting
- FsLexYacc
- FsLexYacc706
- FsLexYaccRuntime
- FsPickler
- FsUnit
- Projekt
- Suave
- UnionArgParser
- ExcelDnaRegistration
- MathNetNumerics
- `programs.x2goserver` is now `services.x2goserver`
- The following dotnet-related packages have been removed for being unmaintaned. Please use `fetchNuGet` for specific packages.
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- Autofac
- SystemValueTuple
- MicrosoftDiaSymReader
- MicrosoftDiaSymReaderPortablePdb
- SystemCollectionsImmutable
- SystemCollectionsImmutable131
- SystemReflectionMetadata
- NUnit350
- Deedle
- ExcelDna
- GitVersionTree
- NDeskOptions
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* The `antlr` package now defaults to the 4.x release instead of the
old 2.7.7 version.
* The `pulseeffects` package updated to [version 4.x](https://github.com/wwmm/easyeffects/releases/tag/v6.0.0) and renamed to `easyeffects`.
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* The `libwnck` package now defaults to the 3.x release instead of the
old 2.31.0 version.
* The `bitwarden_rs` packages and modules were renamed to `vaultwarden`
[following upstream](https://github.com/dani-garcia/vaultwarden/discussions/1642). More specifically,
* `pkgs.bitwarden_rs`, `pkgs.bitwarden_rs-sqlite`, `pkgs.bitwarden_rs-mysql` and
`pkgs.bitwarden_rs-postgresql` were renamed to `pkgs.vaultwarden`, `pkgs.vaultwarden-sqlite`,
`pkgs.vaultwarden-mysql` and `pkgs.vaultwarden-postgresql`, respectively.
* Old names are preserved as aliases for backwards compatibility, but may be removed in the future.
* The `bitwarden_rs` executable was also renamed to `vaultwarden` in all packages.
* `pkgs.bitwarden_rs-vault` was renamed to `pkgs.vaultwarden-vault`.
* `pkgs.bitwarden_rs-vault` is preserved as an alias for backwards compatibility, but may be removed in the future.
* The static files were moved from `/usr/share/bitwarden_rs` to `/usr/share/vaultwarden`.
* The `services.bitwarden_rs` config module was renamed to `services.vaultwarden`.
* `services.bitwarden_rs` is preserved as an alias for backwards compatibility, but may be removed in the future.
* `systemd.services.bitwarden_rs`, `systemd.services.backup-bitwarden_rs` and `systemd.timers.backup-bitwarden_rs`
were renamed to `systemd.services.vaultwarden`, `systemd.services.backup-vaultwarden` and
`systemd.timers.backup-vaultwarden`, respectively.
* Old names are preserved as aliases for backwards compatibility, but may be removed in the future.
* `users.users.bitwarden_rs` and `users.groups.bitwarden_rs` were renamed to `users.users.vaultwarden` and
`users.groups.vaultwarden`, respectively.
* The data directory remains located at `/var/lib/bitwarden_rs`, for backwards compatibility.
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- `yggdrasil` was upgraded to a new major release with breaking changes, see [upstream changelog](https://github.com/yggdrasil-network/yggdrasil-go/releases/tag/v0.4.0).
- `icingaweb2` was upgraded to a new release which requires a manual database upgrade, see [upstream changelog](https://github.com/Icinga/icingaweb2/releases/tag/v2.9.0).
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- The `isabelle` package has been upgraded from 2020 to 2021
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- the `mingw-64` package has been upgraded from 6.0.0 to 9.0.0
- `tt-rss` was upgraded to the commit on 2021-06-21, which has breaking changes, see [this thread](https://community.tt-rss.org/t/rip-config-php-hello-classes-config-php/4337) in the tt-rss forums for details.
## Other Notable Changes {#sec-release-21.11-notable-changes}
- The setting [`services.openssh.logLevel`](options.html#opt-services.openssh.logLevel) `"VERBOSE"` `"INFO"`. This brings NixOS in line with upstream and other Linux distributions, and reduces log spam on servers due to bruteforcing botnets.
However, if [`services.fail2ban.enable`](options.html#opt-services.fail2ban.enable) is `true`, the `fail2ban` will override the verbosity to `"VERBOSE"`, so that `fail2ban` can observe the failed login attempts from the SSH logs.
- Sway: The terminal emulator `rxvt-unicode` is no longer installed by default via `programs.sway.extraPackages`. The current default configuration uses `alacritty` (and soon `foot`) so this is only an issue when using a customized configuration and not installing `rxvt-unicode` explicitly.
- `python3` now defaults to Python 3.9. Python 3.9 introduces many deprecation warnings, please look at the [What's New In Python 3.9 post](https://docs.python.org/3/whatsnew/3.9.html) for more information.
- The `claws-mail` package now references the new GTK+ 3 release branch, major version 4. To use the GTK+ 2 releases, one can install the `claws-mail-gtk2` package.
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- The wordpress module provides a new interface which allows to use different webservers with the new option [`services.wordpress.webserver`](options.html#opt-services.wordpress.webserver). Currently `httpd` and `nginx` are supported. The definitions of wordpress sites should now be set in [`services.wordpress.sites`](options.html#opt-services.wordpress.sites).
Sites definitions that use the old interface are automatically migrated in the new option. This backward compatibility will be removed in 22.05.
- The order of NSS (host) modules has been brought in line with upstream
recommendations:
- The `myhostname` module is placed before the `resolve` (optional) and `dns`
entries, but after `file` (to allow overriding via `/etc/hosts` /
`networking.extraHosts`, and prevent ISPs with catchall-DNS resolvers from
hijacking `.localhost` domains)
- The `mymachines` module, which provides hostname resolution for local
containers (registered with `systemd-machined`) is placed to the front, to
make sure its mappings are preferred over other resolvers.
- If systemd-networkd is enabled, the `resolve` module is placed before
`files` and `myhostname`, as it provides the same logic internally, with
caching.
- The `mdns(_minimal)` module has been updated to the new priorities.
If you use your own NSS host modules, make sure to update your priorities
according to these rules:
- NSS modules which should be queried before `resolved` DNS resolution should
use mkBefore.
- NSS modules which should be queried after `resolved`, `files` and
`myhostname`, but before `dns` should use the default priority
- NSS modules which should come after `dns` should use mkAfter.
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- The [networking.wireless.iwd](options.html#opt-networking.wireless.iwd.enable) module has a new [networking.wireless.iwd.settings](options.html#opt-networking.wireless.iwd.settings) option.