Got it! But better ping me when it's ready!
Oh, I'll follow you
It took me a while more than I expected but it’s finally released, v1.3 is a major update, and if you are using previous versions I recommend to do a clean install!
Also, here’s the documentation/wiki for the new versions
I released a new v1.3.1 if you are interested, I fixed a lot of critical issues from last version v1.3.0 and now should be on a very compatible state for GameMaker’s newer versions and previous versions (GameMaker Studio 2.3+) too.
Hopefully for v1.4.0 I would add some compatibility for GameMaker Studio 2 (pre 2.3) and GameMaker Studio 1.4.