Here at this link you can find the huge fixlist available inside this CR2
here at this link you will find the links to all parts needed like :
- databases upgrade schema (upgrade required for Activities, Files, Homepage, Mobile, and Wikis9
- upgrade link for sonata services and Survey 8.5/8.6,
- upgrade link for Filenet and CCM,
- upgrade required for Ephox editors to 18.104.22.168.
The suggested version of Websphere was upgraded to 8.5.5 FP9.
I suggest you to start here reading the updated upgrade strategies document.
happy upgrade to everybody !