lix/doc/manual/src/release-notes/rl-next.md

# Release 2.5 (2021-XX-XX)

* The garbage collector no longer blocks new builds, so the message
  `waiting for the big garbage collector lock...` is a thing of the
  past.

* Binary cache stores now have a setting `compression-level`.

* `nix develop` now has a flag `--unpack` to run `unpackPhase`.

* Lists can now be compared lexicographically using the `<` operator.

* New built-in function: `builtins.groupBy`, with the same functionality as
  Nixpkgs' `lib.groupBy`, but faster.

* `nix repl` now has a `:log` command.
Start 2.5 release notes 2021-10-07 18:09:03 +00:00			`# Release 2.5 (2021-XX-XX)`

Add release notes entry for #5149 2021-11-29 11:42:01 +00:00			`* The garbage collector no longer blocks new builds, so the message`
			`waiting for the big garbage collector lock...` is a thing of the
			`past.`

Mention compression-level in the release notes 2021-10-13 09:11:26 +00:00			* Binary cache stores now have a setting `compression-level`.
Update release notes 2021-10-13 09:39:54 +00:00
			* `nix develop` now has a flag `--unpack` to run `unpackPhase`.
Make lists be comparable Makes lists comparable using lexicographic comparison. Increments builtins.langVersion in order for this change to be detectable 2021-11-22 22:56:40 +00:00
			* Lists can now be compared lexicographically using the `<` operator.
Introduce builtins.groupBy primop This function is very useful in nixpkgs, but its implementation in Nix itself is rather slow due to it requiring a lot of attribute set and list appends. 2021-12-02 16:46:44 +00:00
			* New built-in function: `builtins.groupBy`, with the same functionality as
			Nixpkgs' `lib.groupBy`, but faster.
nix repl: add :log Add a :log command that shows logs for a derivation. Closes https://github.com/NixOS/nix/issues/3504 Co-authored-by: Taeer Bar-Yam <taeer@bar-yam.me> 2021-11-26 15:03:07 +00:00
			* `nix repl` now has a `:log` command.