Developer Tools for ProseMirror
Full Changelog: https://github.com/d4rkr00t/prosemirror-dev-tools/compare/v4.0.0...v4.1.0
Full Changelog: https://github.com/d4rkr00t/prosemirror-dev-tools/compare/v3.1.0...v4.0.0
Since this version minimal required version of node is 6