As a heads up to everyone out there: we're getting a lot of bug reports, particularly crashes, from people using Qt 4.6.0. That version of Qt has a handful of crashes in it that some KDE apps trigger all too reliably. A patch release of Qt, v4.6.1, has been released that addresses a number of these issues. Qt 4.6.2 that's upcoming will be even better, and I understand that some distributions have been backporting some of these critical fixes. If you are having a hard time with the 4.4 release candidates, please check your Qt version first.
Then there's this bug in glibc, which has been fixed, and some distributions have backported those fixes to affected versions already. Unfortunately, some of our users are still getting exposed to it. Not fun.
Just one of those months, it seems.
The 4.4 release for KDE SC is coming along well. We've been hammering nasties, of both the crasher and general misbehavior sort, over the head at a reasonable pace, even though 4.5 is open and some work is going on there. I count 52 backport commits to the 4.4 branch in just Plasma-land in the last seven days.
(A "backport" is when we fix something in the main development branch, in this case it is what will eventually become KDE SC 4.5, and then after testing it there merge the fix into the previous stable branch, in this case what will become KDE SC 4.4.0.)
(Trunk teaser: Marco is doing some really nice work on notification and job display right now. Woo! This is why you want to join us and run an svn trunk build of KDE SC so you can help us test while you get the first tastes of things coming down the pipe! ;)