"The KDE team released KDE 4.3.0 RC1. RC1, an early candidate for what will become KDE 4.3.0 at the end of this month.
Artwork has now also been merged, and KDE 4.3 will have a new Plasma look, sported by the new, light "Air" Plasma theme.
Oxygen, the default in earlier versions of KDE 4 is still available as an option through the "Desktop Settings" dialog. Please give this version some good testing so we can iron out last bugs and make 4.3.0 a smooth release. Note that KDE 4.3.0 RC1 is not suitable for end users."
Highlights of KDE 4.3 are...
- Integration of many new technologies, such as PolicyKit and Geolocation services
- New Window animation effects, a more usable Run Command popup and many new and improved addons in Plasma
- Many bugfixes and improvements across all applications and more integration of features coming with the KDE 4 platform
http://www.kde.org/announcements/announce-4.3-rc1.php