The object tree visually appears the same. When I would try to use it before, it would never expand the object tree properly to find the object within all the layers. (Our product is still using the same UI components as before.) I actually had a support call with their support a week or two ago (for a separate issue) and when he wanted to see the object in the Object Tree it didn't expand then too.
If I would try to expand the object tree in the past as I would expand the layers, with each subsequent layer it would slow and if I let it would take 30+ minutes for very deep objects.
Regarding two issues I reported in a prior thread...
Drop down options closing prematurely - Supplied a lot of info, a bare bones project, scripts, etc for them to reproduce this bug, and am awaiting a fix. (I should see if this still occurs in this new version.)
Some instances of TestComplete Chrome Host hanging - still happens once or twice a day for me, even in this newest version, and has to be killed via process manager. Coincidentally, when I was on a call with support and the session was being logged in more detail monitoring system processes, etc, this randomly happened too. So, hoping that they can glean some details of this issue too and provide a fix for it. (This is not as problematic as it was two versions ago where many instances of this process would remain open, now it is only one that randomly hangs.)