We need help how to better manage issue��19236.

Generally: we have class Tab which is morph related to tabs widget. It conflicts with key mapping class variable and some similar stuff from Xtreams.

So this issue made rename of morph classes from tabs widget to add them ~Morph suffix.��

I think it is good change. But it leads to incompatibility for old images. So any tools which use tabs will be not working in Pharo6.

How to better manage this problem? Could we integrate this change?