I too am hoping Ability will drop right in to the 4.5.0 , crossing fingers! I just bought a developers license 40 days ago, waiting for a stable 4.4.x is costing to much.
Also, can anyone who has used the custom feature of ability, please tell me how to change the background overlay on the Header and Footer. I am using the #4 preset but want only a solid color, no overlay on the header or footer. I am sure there is an easy way to make this change. Anyone????