I was looking more like a generic answer (not yet a "feature based") about the continuity of the support and development (e.g. maintenance/bugfix releases) and so forth. I'm sure that especially after the acquisition such a generic statement would do good for current (and future ...
First of all, I have been using Total Commander for 15+ years and just recently discovered Altap Salamander - and I have decided to give Altap a try and it looks very promising. For me (even with free or OpenSource sw), developer activity and response to users inquiries plays important role ...