# Revision history for distribution-nixpkgs

## 1.6.0

• Distribution.Nixpkgs.PackageMap
• readNixpkgPackageMap: instead of a list of arguments to pass to nix-env, take path to nixpkgs and an optional nix expression to pass to it as arguments.
• readNixpkgPackageMap: populate PackageMap with all attribute paths that point to derivations instead of just one per derivation. This fixes resolve not finding certain identifiers if there were two attributes pointing to the same derivation in nixpkgs. See also #9.