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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:

- Support is planned until the end of April 2022, handing over to 22.05.

## Highlights {#sec-release-21.11-highlights}

- PHP now defaults to PHP 8.0, updated from 7.4.

## New Services {#sec-release-21.11-new-services}

- [geoipupdate](https://github.com/maxmind/geoipupdate), a GeoIP database updater from MaxMind. Available as [services.geoipupdate](options.html#opt-services.geoipupdate.enable).

- [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).

## Backward Incompatibilities {#sec-release-21.11-incompatibilities}

- The `staticjinja` package has been upgraded from 1.0.4 to 2.0.0

- `services.geoip-updater` was broken and has been replaced by [services.geoipupdate](options.html#opt-services.geoipupdate.enable).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.

  - 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.
  - Autofac
  - SystemValueTuple
  - MicrosoftDiaSymReader
  - MicrosoftDiaSymReaderPortablePdb
  - SystemCollectionsImmutable
  - SystemCollectionsImmutable131
  - SystemReflectionMetadata
  - NUnit350
  - Deedle
  - ExcelDna
  - GitVersionTree
  - NDeskOptions

* The `antlr` package now defaults to the 4.x release instead of the
  old 2.7.7 version.

* The `libwnck` package now defaults to the 3.x release instead of the
  old 2.31.0 version.

## 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.