From ADF Docs
The upgrade guides are below for the specific ADF versions.
CommonSpot 10.6.1 and 10.5.2 and above:
CommonSpot 10.x up to 10.6.0 and 10.5.1:
CommonSpot 9.x and below
IMPORTANT: ADF 2.x can only be used with CommonSpot 10 or above. For CommonSpot 9.x and below please use ADF 1.8.x.