http://www.blender.org/development/current-projects/changes-since-245/sequencer-changes/
http://www.blender.org/development/current-projects/changes-since-245/constraint-improvements/
http://www.blender.org/development/current-projects/changes-since-245/armature-drawing-improvements/
Check out the huge amount of goodies mentioned here if you haven’t already, release log creation is in full swing and expanding fast.
i love the sequencer work with the new tabs.