Hard to say at this moment 
Hi do know this old but still developed version of Blender CAD tools for Blender-3D
I hope a something new in the next months, this is a side of Blender, that Iām looking, since years ago, now with new modifier for Grease Pencil, is fast generate 2D draft, from 3D model, Iām experimenting and using Blender, for CAD purposes, and with dynamic dimensions system, we can do nice 2D draft, inside on Blender. here a new test made with under develop version Experiment LineArt
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I did not know CAD tools was still on development, thought it was stuck on 2.49
Thanks for sharing experiments and tests focused on blender cad
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Continued working in backgrounds. Just finished another patch D10852 needed to create a new selection mode for dimensions. I do not think this it will be ever included in blender, but liked to select dims in the same way you select verts, faces, edges, from an addon. So i added the option in a generic way.
I also added a poll https://www.patreon.com/posts/features-poll-48943119 , to know what you wish to have in blender in this project context. Thanks!