This is a maintenance release. The following items were fixed and/or added:
Network: fixed the problem with packets larger than MTU-4 when PCnet or PRO/1000 was bridged to certain types of adapters on OS X hosts (bug #3783)
NAT: fixed a segfault under rare circumstances
3D Support: fixed Windows WDDM video driver crash for SMP guests (bugs #10200, #10331)
Windows Guest Additions, VRDP: fixed occasional corruption of vertical text