Mechanical Blender is a new Blender fork that aims to add CAD tools to Blender. The current features include snap tools, measurements and more. The team promises to keep their code in sync with the main Blender branch, so it should stay up to date.
I've uploaded new videos about mesh dimension works made in a fork shared on github. They are part of mechanicalblender project, which purpose is developing cad tools and procedures built-in in blender.