It is impossible (quite literally) to go from 6.0x to 6.1.0 using BeyondCompare - all the scripts are TOTALLY different as far as the code layout is concerned. (Though the code itself hasn't changed that incredibly much, BeyondCompare isn't smart enough to figure that out - nothing is... :))
And I would advise going to 6.1.0 about a week after it's out so that any issues that may pop up can be corrected... We aren't anticipating showstopper bugs, but there will surely be lots of little nitpick bugs to fix.