Do not think Cobalt development is ignored again. I continue development.
As you all know I try to update Cobalt to BS4. This turned out to be quite a massive work. For example, today I was updating relation Child and Parent fields. Little insight, I've added detach function. As a result of updating these 2 fields to BS4, 65 files was changed. It is only for 2 fields. When I typed 65 files it does not sounds as much, but in reality it is a huge amount of files. It takes one hour just to open