An extensive overview of the changes for KDE 4.3 can be found at KDE.org within their release announcement. The next major release of KDE 4 will be the 4.4 release to come next January, but in the meantime there will be monthly point release updates for KDE 4.3.
Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.