# 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- The `staticjinja` package has been upgraded from 1.0.4 to 2.0.0 - `services.geoip-updater` was broken and has been replaced by [services.geoipupdate](options.html#opt-services.geoipupdate.enable).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;`. - 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.