# Release 3.8.0 (2025-07-10)

* Based on [upstream Nix 2.30.0](../release-notes/rl-2.30.md).

## What's Changed
* Sync with upstream 2.30.0 by @edolstra in [DeterminateSystems/nix-src#135](https://github.com/DeterminateSystems/nix-src/pull/135)
* nix flake check: Skip substitutable derivations by @edolstra in [DeterminateSystems/nix-src#134](https://github.com/DeterminateSystems/nix-src/pull/134)
* lockFlake(): When updating a lock, respect the input's lock file by @edolstra in [DeterminateSystems/nix-src#137](https://github.com/DeterminateSystems/nix-src/pull/137)
* Hide double copy warning by @edolstra in [DeterminateSystems/nix-src#138](https://github.com/DeterminateSystems/nix-src/pull/138)
* Remove some dead code to minimize the upstream diff by @edolstra in [DeterminateSystems/nix-src#139](https://github.com/DeterminateSystems/nix-src/pull/139)


**Full Changelog**: [v3.7.0...v3.8.0](https://github.com/DeterminateSystems/nix-src/compare/v3.7.0...v3.8.0)