I wanted to know which version we should use of Lyo Designer ? I see that the examples of the lyo sample modeling repo are no longer up to date and that a new refimpl repo has been created so I wonder if the version of lyo designer has also been changed. The refimpl repo was created with which lyo designer tool ?
This one Project download area | The Eclipse Foundation Or this one GitHub - eclipse/lyo.designer: lyo.designer ?
As for your last link (GitHub - eclipse/lyo.designer: lyo.designer), that’s the source code for LyoDesigner. So you don’t really need that unless you want to make changes to LyoDesigner (which you are very very welcome to do :-))