Having just emerged what looked like a couple of hundred things, many of
them KDE-4 related, I'm surprised that on reboot I'm still running KDE 3.5.
Moreover, there's only /usr/kde/3.5, no 4*.  The only change I noticed was
in the background of the login dialog.

One guess is that the flood of newly-stable things in incomplete.  But I
have not been watching the news, so I don't know.

Should I just wait, or is there something I should be doing?

++ kevin