oxalica/nil 2025-06-13

Snapshot release 2025-06-13

on GitHub

Features

• nixfmt (nixfmt-rfc-style) is now used by default if no formatter is set, as it's becoming the official formatter for nixpkgs.

  See: NixOS/rfcs#166

• Support contextual keyword __curPos.

• Support experimental |> and |< operators since Nix 2.24 (#155).

  See: https://github.com/NixOS/nix/blob/2.24.0/doc/manual/src/language/operators.md#pipe-operators

• --deny-warnings flags for nil diagnostics (#157).

• Multiple files support for nil diagnostics (#126).

• New assist remove_unused_binding (#159).

  • { foo, bar }: { foo = 1; } => { foo }: { foo = 1; }
  • let foo = 1; in { } => let in { }

• Assist pack_bindings now supports converting implicit attrset into explicit nested one.

  • { foo.bar = 1; } => { foo = { bar = 1; }; }

Fixes

• Reword and simplify labels of assists, so it's easier to get what is does.

• Compatibility with latest Nix and Nixpkgs.

• Compatibility with flakes containing relative subflakes.

Internal

• The main flake.nix is simplified to only has nixpkgs dependency.

  devShells are moved to ./dev/flake.nix subflake.

• Bump MSRV to 1.77

• Bump various dependencies.

• Documentation tweaks.