• Package name: gnugrep
• Latest released version: 3.10

• Current version on the unstable channel: 3.7
• Current version on the stable/release channel: 3.7

• Checked the nixpkgs pull requests

Notify maintainers

@edolstra @m00wl

Also, @trofi for the last version bump.

Note for maintainers: Please tag this issue in your PR.