Parity with npm version?

[scottgonzalez]

This should support everything npm version supports.

The two things that immediately stand out are:

bumping the build version: grunt release:build
releasing with a specific version: grunt release:1.2.3

Also, an option (or automatic based on environment detection) for signing the tag.

There may be other features as well.

[geddski]

it signs the tag now by default, and also supports tagging a release for npm via --npmtag. The build version can be bumped using: grunt release:prerelease. See readme for more details, but I think we're there now so closing this.