omlx writes "KDE SC 4.5 is in feature freeze right now. Therefore, I decided to share some early screenshots with you. In general there are no major changes; it's all about polishing and fixing bugs. There are a lot of under-the-hood changes in libs, which as end users we cannot see. KDE SC will be released in August 2010."
Note: you can also try out a beta of the release
now, if you'd like.