Hi, In trying to help Riccardo, I noticed the big "DOCUMENTATION" link in the header of the web site goes to the 4.1 documentation and not the 4.2 documentation. Also, the validateForX methods are barely mentioned and otherwise undocumented. Also also, the system requirements table needs updated here: https://cayenne.apache.org/docs/4.2/cayenne-guide/#system-requirements
There are probably more, but that's what I noticed offhand. I'll try to fix them when I have some time, but it might be a while. Thanks, mrg