We added lots od settings, please install 6.2.x and 6.3 side by side and compare those settings (install all possible plugins) and put a "diff" into upgrade guide what's: 1) NEW 2) CHANGED 3) REMOVED Thanks
The purpose of the text is not just a list, but to instruct the user what needs to be considered to set. We have some new settings which might have big effect on behavior or performance.