first up - thank you for all the good stuff in fm15! :-) You've fixed LOTS of stuff - it's a far greater user experience when developing!
Here's my first little bug that I have encountered, sadly not past the Getting started screen - lol!
I wanted to create a new DB from the contacts starter solution ...
and - because I have older versions of FM on my computer - it tried to open in fm14 and gave the following error.
I guess the new solution is being opened using the fmp URL protocol, which sadly chooses the wrong version.
You don't need to explain the problem or workaround, I just thought you might like to know and it it to your bug list.
Happy debugging with fm15 :-)