> I noticed some glitches:
> When I use list filtering for the instvars in an inspector the list doesn't
> automatically  return to normal.
> Maybe a preference I missed.

Preference is "Filterable Lists Clear Automatically".  Looks like it
was conciously decided to set that off for this release.

> When I play with that list filtering at some point the CPU goes up to 90%
> and does not return until I shut down the image.

How to reproduce?

> The right click (personal) World menu has lost the entry to disable the main
> docking bar. I disabled it via preferences.

This is due to #generalizedYellowButtonMenu.  I'll set it explicitly
in the release builder.

> Otherwise it survived the first hour :-))

Thanks for the report!