Further Incompatibilities: Emacs, Openrazer, Fontconfig, Yambar, and More

- `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). - The `isabelle` package has been upgraded from 2020 to 2021 - 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. If you use `services.tt-rss.extraConfig` you should migrate to the `putenv`-style configuration. See [this Discourse post](https://community.tt-rss.org/t/rip-config-php-hello-classes-config-php/4337) in the tt-rss forums for more details. - The following Visual Studio Code extensions were renamed to keep the naming convention uniform. - `bbenoist.Nix` -> `bbenoist.nix` - `CoenraadS.bracket-pair-colorizer` -> `coenraads.bracket-pair-colorizer` - `golang.Go` -> `golang.go` - `services.uptimed` now uses `/var/lib/uptimed` as its stateDirectory instead of `/var/spool/uptimed`. Make sure to move all files to the new directory. - Deprecated package aliases in `emacs.pkgs.*` have been removed. These aliases were remnants of the old Emacs package infrastructure. We now use exact upstream names wherever possible. - `programs.neovim.runtime` switched to a `linkFarm` internally, making it impossible to use wildcards in the `source` argument. - The `openrazer` and `openrazer-daemon` packages as well as the `hardware.openrazer` module now require users to be members of the `openrazer` group instead of `plugdev`. With this change, users no longer need be granted the entire set of `plugdev` group permissions, which can include permissions other than those required by `openrazer`. This is desirable from a security point of view. The setting [`hardware.openrazer.users`](options.html#opt-services.hardware.openrazer.users) can be used to add users to the `openrazer` group. - The fontconfig service's dpi option has been removed. Fontconfig should use Xft settings by default so there's no need to override one value in multiple places. The user can set DPI via ~/.Xresources properly, or at the system level per monitor, or as a last resort at the system level with `services.xserver.dpi`. - The `yambar` package has been split into `yambar` and `yambar-wayland`, corresponding to the xorg and wayland backend respectively. Please switch to `yambar-wayland` if you are on wayland. - The `services.minio` module gained an additional option `consoleAddress`, that configures the address and port the web UI is listening, it defaults to `:9001`. To be able to access the web UI this port needs to be opened in the firewall. - The `varnish` package was upgraded from 6.3.x to 7.x. `varnish60` for the last LTS release is also still available. - The `kubernetes` package was upgraded to 1.22. The `kubernetes.apiserver.kubeletHttps` option was removed and HTTPS is always used. - The attribute `linuxPackages_latest_hardened` was dropped because the hardened patches lag behind the upstream kernel which made version bumps harder. If you want to use a hardened kernel, please pin it explicitly with a versioned attribute such as `linuxPackages_5_10_hardened`. - The `nomad` package now defaults to a 1.1.x release instead of 1.0.x - If `exfat` is included in `boot.supportedFilesystems` and when using kernel 5.7 or later, the `exfatprogs` user-space utilities are used instead of `exfat`. - The `todoman` package was upgraded from 3.9.0 to 4.0.0. This introduces breaking changes in the [configuration file](https://todoman.readthedocs.io/en/stable/configure.html#configuration-file) format. - The `datadog-agent`, `datadog-integrations-core` and `datadog-process-agent` packages were upgraded from 6.11.2 to 7.30.2, git-2018-09-18 to 7.30.1 and 6.11.1 to 7.30.2, respectively. As a result `services.datadog-agent` has had breaking changes to the configuration file. For details, see the [upstream changelog](https://github.com/DataDog/datadog-agent/blob/main/CHANGELOG.rst).

This section continues listing backward incompatibilities, including upgrades to `icingaweb2`, `isabelle`, `mingw-64`, and `tt-rss`. Visual Studio Code extensions were renamed. `services.uptimed` now uses a new state directory. Deprecated Emacs package aliases were removed. `programs.neovim.runtime` uses a `linkFarm`. Openrazer now requires users to be in the `openrazer` group, and fontconfig's dpi option was removed. The `yambar` package was split into `yambar` and `yambar-wayland`. Minio's `consoleAddress` option was added, `varnish` and `kubernetes` were upgraded with breaking changes. `linuxPackages_latest_hardened` was dropped. `nomad` defaults to 1.1.x. `exfatprogs` is used for exfat filesystems on kernel 5.7+. `todoman` was upgraded with breaking config changes. Datadog packages were upgraded with config changes.