The KDE team happily announces the release of the first KDE 4.0 Release Candidate. The release note says that the majority of the components of the KDE 4.0 are approaching release quality but the Plasma brand is still under construction.
The KDE team released two Live CDs of the Release Candidate 1; the openSUSE KDE 4 Live CD and the Debian KDE Beta 4 Live CD. These two Live CDs are installable on openSUSE and Kubuntu distributions. Source code is available for compiling on other distributions. The KDE Team counts on the community for testing and to eventually report bugs before the final release of KDE 4.0 in December.
On the other hand, the KDE team releases the final version of the KDE Development Platform, which provides the needed libraries and applications the KDE Desktop is based on.