Will there be a log of the delta between last release and this?
As in what is new?
unfortunately not (there will be a release log describing some of the new features)
I mean, not at launch, I will see if I can generate one from list of past commits later
So current Xeno with launcher gets retired now
no, launcher will auto update to new one soon
display announcement etc...
btw, please backup your project properly before upgrade, we changed lot of namespace and switched to new project system so auto project upgrade is doing a lot of stuff, and might not work automatically out of the box in some advanced cases
I can see this working the way UE4 does (i.e. launcher with binaries for people who don't feel comfortable building themselves)