This is not the major new version, this is just a maintenance release for the current standalone Premium version (non-Steam).For those that already have a copy of version 2 installed (Free or Premium, not via Steam) and want to try out the Release Candidate:
1 - Run your installed copy.
2 - Click on Options
3 - Click the "Check for Release Candidate" button.
Is it working?
Please send me (even blank) feedback from inside the program (click on the 'Send Feedback' link).
Problem?
Please describe here (or send me an email) with what's happening here so I can try and fix it.
As soon as I hear from a few of you and everything looks good, I'll flip the switch and release it to everyone.
Again, this is just a maintenance release, no new features worth mentioning, but several major bug fixes and it no longer requires .NET 4, the new version only requires .NET 2 (which is why I updated the minor version number from 2.1.x to 2.2.x).
Full list of improvements and fixes:
http://universesandbox.com/whatsnew/Thanks!