Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
KDE 3.4.3 has been officially released today and with it come the release of distro specific packages and even the release of KDE centric distributions such as Kubuntu 5.10.
The 3.4.3 info page has the links to download the source and packages are available for Arch Linux, Kubuntu, Slackware and SuSE.
I downloaded the svn when it was tagged almost a week ago and can report that the performance as well as the font rendering seems improved. Other sources have confirmed they found the same.