Configuration menu is now using Tabs to provide a more standard,

  convenient and pleasing layout
 Sound Menu: Play button reflects playback status and shows either
  "Play" or "Pause"
 Bugfixes and Features (CCBUGS, as most bugs are already closed). Hint: Some
bugs might have actually been alreay fixed ibn KDE4.11 or KDE4.12.

Bug ID	Severity	Summary
CCBUGS:317926  critical kmix start delayed on 20 seconds
CCBUGS:315383	normal	mpris volume/play status not in sync with app in kmix
applet
CCBUGS:299477	normal	KMix Does Not Unmute Master Audio Channel
CCBUGS:256854	normal	Tray popup obscures vertical panel
CCBUGS:304144	normal	KMix does not distinguish separate channels on one
volume control
CCBUGS:296951	normal	Tray plasmoid scroll/hiding issues [read description]
CCBUGS:303608	crash	Kmix crashed after selecting Amarok as master
CCBUGS:214854	normal	kmix size is not restored by session management, only
position.
CCBUGS:319600	major	KMix volume icon is unstale during playback