640-461 CME and CUCM versions

I tried to find on the exam objectives page what version Cisco is testing us on but couldn't find it. If we're not supposed to know I'll drop it, but there is quite a bit of difference between 8.5 and 10.0!
Climb a mountain, tell no one.
Comments
....it is probably fair to say the most likely version covered on the test would be 8.0.
CUCM SRND 9x/10, UCCX SRND 10x, QOS SRND, SIP Trunking Guide, anything contact center related