The last two years have seen the KDE desktop not only rewritten from scratch, but adding innovation after innovation. Sooner or later, the moment had to come when its breakneck pace of development slowed -- and, judging from the second beta, that moment is the upcoming 4.5 release. Not that KDE 4.5 is short of changes. However, most of them are either concerned with stability and appearance, or minor enhancements. By contrast, new applications or directions are few. You might call the 4.5 release a consolidation and refinement of the improvements made in previous releases in the KDE 4 series.