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c88944f025
nixpkgs/nixos/doc/manual/release-notes/rl-2305.section.md
Andrew Marshall c88944f025 nixos: nix.readOnlyStore -> boot.readOnlyNixStore 
The placement of this option under `nix` was misleading, as it is not
configuration of the Nix daemon, but rather configuration of the NixOS
boot process and how it mounts the Nix store. As such, make it an option
of `boot` to clarify what it actually affects, and imply that it will
only take effect on a reboot.

Since it no longer has the context of nix, adjust the name to include
it.
2022-11-30 22:57:08 -05:00

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Release 23.05 (“Stoat”, 2023.05/??)

Support is planned until the end of December 2023, handing over to 23.11.

Highlights

In addition to numerous new and upgraded packages, this release has the following highlights:

New Services

  • Create the first release note entry in this section!

Backward Incompatibilities

  • carnix and cratesIO has been removed due to being unmaintained, use alternatives such as naersk and crate2nix instead.

  • The EC2 image module no longer fetches instance metadata in stage-1. This results in a significantly smaller initramfs, since network drivers no longer need to be included, and faster boots, since metadata fetching can happen in parallel with startup of other services. This breaks services which rely on metadata being present by the time stage-2 is entered. Anything which reads EC2 metadata from /etc/ec2-metadata should now have an after dependency on fetch-ec2-metadata.service

  • The EC2 image module previously detected and automatically mounted ext3-formatted instance store devices and partitions in stage-1 (initramfs), storing /tmp on the first discovered device. This behaviour, which only catered to very specific use cases and could not be disabled, has been removed. Users relying on this should provide their own implementation, and probably use ext4 and perform the mount in stage-2.

  • The EC2 image module previously detected and activated swap-formatted instance store devices and partitions in stage-1 (initramfs). This behaviour has been removed. Users relying on this should provide their own implementation.

  • The nix.readOnlyStore option has been renamed to boot.readOnlyNixStore to clarify that it configures the NixOS boot process, not the Nix daemon.

Other Notable Changes

  • The module for the application firewall opensnitch got the ability to configure rules. Available as services.opensnitch.rules

  • A new virtualisation.rosetta module was added to allow running x86_64 binaries through Rosetta inside virtualised NixOS guests on Apple silicon. This feature works by default with the UTM virtualisation package.