doc/release-notes: cleanup highlights

- **This will be the last release of Nixpkgs to support macOS Sierra 10.12 to macOS Catalina 10.15.**

  Starting with release 25.05, the minimum supported version will be macOS Big Sur 11, and we cannot guarantee that packages will continue to work on older versions of macOS.

  Users on old macOS versions should consider upgrading to a supported version (potentially using [OpenCore Legacy Patcher](https://dortania.github.io/OpenCore-Legacy-Patcher/) for old hardware) or installing NixOS.

  If neither of those options are viable and you require new versions of software, [MacPorts](https://www.macports.org/) supports back to Mac OS X Snow Leopard 10.6.

  If neither of those options are viable and you require new versions of software, [MacPorts](https://www.macports.org/) supports versions back to Mac OS X Snow Leopard 10.6.

- Nix was updated to 2.24, which brings a lot of improvements and fixes. See the release notes for

    [2.19](https://nix.dev/manual/nix/latest/release-notes/rl-2.19),

    [2.20](https://nix.dev/manual/nix/latest/release-notes/rl-2.20),

    [2.22](https://nix.dev/manual/nix/latest/release-notes/rl-2.22),

    [2.23](https://nix.dev/manual/nix/latest/release-notes/rl-2.23),

    [2.24](https://nix.dev/manual/nix/latest/release-notes/rl-2.24).

  Notable changes include improvements to Git fetching, documentation comment support in `nix-repl> :doc`, as well as many quality of life improvements.

  Notable changes include improvements to Git fetching, documentation comment support in `nix-repl> :doc`, as well as many quality of life additions.

- This will be the last release of Nixpkgs to support versions of CUDA prior to CUDA 12.0.

  These versions only work with old compiler versions that will be unsupported by the time of the Nixpkgs 25.05 release.

  In future, users should expect CUDA versions to be dropped as the compiler versions they require leave upstream support windows.

  In the future, users should expect CUDA versions to be dropped as the compiler versions they require leave upstream support windows.

- Convenience options for `amdgpu`, the open source driver for Radeon cards, are now available under [`hardware.amdgpu`](#opt-hardware.amdgpu.initrd.enable).

- Convenience options for `amdgpu`, open source driver for Radeon cards, is now available under `hardware.amdgpu`.

- [AMDVLK](https://github.com/GPUOpen-Drivers/AMDVLK), AMD's open source Vulkan driver, is now available to be configured under the [`hardware.amdgpu.amdvlk`](#opt-hardware.amdgpu.amdvlk.enable) option.

  This also allows configuring runtime settings for AMDVLK, including enabling experimental features.

- [AMDVLK](https://github.com/GPUOpen-Drivers/AMDVLK), AMD's open source Vulkan driver, is now available to be configured as `hardware.amdgpu.amdvlk` option.

  This also allows configuring runtime settings of AMDVLK and enabling experimental features.

- The `moonlight-qt` package ([Moonlight game streaming](https://moonlight-stream.org/)) now has HDR support on Linux systems.

- The `moonlight-qt` package (for [Moonlight game streaming](https://moonlight-stream.org/)) now has HDR support on Linux systems.

- PostgreSQL now defaults to major version 16.

- GNOME has been updated to version 47. Refer to the [release notes](https://release.gnome.org/47/) for more details.

- `authelia` has been upgraded to version 4.38. This version brings several features and improvements which are detailed in the [release blog post](https://www.authelia.com/blog/4.38-release-notes/).

  This release also deprecates some configuration keys, which are likely to be removed in future version 5.0, but they are still supported and expected to be working in the current version.

  This release also deprecates some configuration keys which are likely to be removed in version 5.0.0.

- `compressDrv` can compress selected files in a derivation. `compressDrvWeb` compresses files for common web server usage (`.gz` with `zopfli`, `.br` with `brotli`).

- `hardware.display` is a new module implementing workarounds for misbehaving monitors

  through setting up custom EDID files and forcing kernel/framebuffer modes.

- [`hardware.display`](#opt-hardware.display.edid.enable) is a new module implementing workarounds for misbehaving monitors

  by setting up custom EDID files and forcing kernel/framebuffer modes.

- A new display-manager `services.displayManager.ly` was added.

  It is a tui based replacement of sddm and lightdm for window manager users.

  Users can use it by `services.displayManager.ly.enable` and config it by

  `services.displayManager.ly.settings` to generate `/etc/ly/config.ini`

- [`services.displayManager.ly`](#opt-services.displayManager.ly.enable) is a new module for configuring the display manager [ly](https://github.com/fairyglade/ly),

  a TUI-based replacement for SDDM and LightDM meant for window manager users.

- `srcOnly` was rewritten to be more readable, have additional warnings in the event that something is probably wrong, use the `stdenv` provided by the derivation, and Noogle-compatible documentation was added.

- The default sound server for most graphical sessions has been switched from PulseAudio to PipeWire.

  Users that want to keep PulseAudio will want to set `services.pipewire.enable = false;` and `hardware.pulseaudio.enable = true;`.

  Users that want to keep using PulseAudio will want to set `services.pipewire.enable = false;` and `hardware.pulseaudio.enable = true;`.

  There is currently no plan to fully deprecate and remove PulseAudio, however, PipeWire should generally be preferred for new installs.

- The Rust rewrite of the `switch-to-configuration` program is now used for system activation by default.

  The original Perl script is deprecated and is planned for removal in the 25.05 release. It will remain accessible until then by setting `system.switch.enableNg` to `false`.

- Support for mounting filesystems from block devices protected with [dm-verity](https://docs.kernel.org/admin-guide/device-mapper/verity.html)

  was added through the `boot.initrd.systemd.dmVerity` option.

  was added through the [`boot.initrd.systemd.dmVerity`](#opt-boot.initrd.systemd.dmVerity.enable) option.

- The [Xen Project Hypervisor](https://xenproject.org) is once again available as a virtualisation option under [`virtualisation.xen`](#opt-virtualisation.xen.enable).

  - This release includes Xen [4.19.0](https://wiki.xenproject.org/wiki/Xen_Project_4.19_Release_Notes) and support for booting the hypervisor on EFI systems.