Some of the features:
- GPodder.net podcast synchronization.
- Re-written USB Mass Storage support.
- The Windows version of Amarok is now officially declared stable.
- Many bugfixes to the iPod plugin
- An integrated Amazon MP3 store.
It has simplified the version scheme to 2 numbers again to reflect development process. 2.5 is a big feature release and has many bugfixes. The next planned version will be 2.6, with new features.
Update: There is just uploaded a new Windows version with an important bug fix. If you were experiencing issues with the Windows build, please check out the updated installer.
Instructions for various Linux distros