name: nix-path-shadow internalName: NixPathShadow timeline:

• date: 2025-11-23 release: 2.95.0 cls: [4632] message: Introduced as an evaluation-time warning.

Shadowing <nix/fetchurl.nix> by configuring the nix path to a value containing nix=/some/path is deprecated. The namespace nix in the Nix path is reserved for usage in internal code, and overriding it may result in nontrivial breakage.