New Features of the KDE4 version:
Runs on any platform that supports Qt4 and KDE4
Supports XMP metadata
Reads, writes and converts into DNG format
New RAW processing tool, gamma-correction in 16 bits
Preview of video and audio files
Database file is independent of photo libraries, enabling remote paths,
multiple roots and offline archives
Improved database with many more metadata that can be searched
Marble integration, geographical filtering with the mouse on the map
New search finds duplicates and similar images
Help menu lists all RAW formats and digiKam component versions
DNG, RWL, NEF and PEF RAW file can be metadata edited
Usability improvements for netbooks
Non-modal image editor
Thumbnail bar in preview mode
Live search boxes in both sidebars and main window
New camera interface, capture tool, scanner interface
New plugin based on lensfun for automatic lens error corrections