Since this is 5.10 based, it's not a relocatable version - it installs to C:\strawberry\ only. The intent is that Alpha 3 will be 5.12 based, and therefore, will be.
Two small bugs already found:
1) the README.txt file isn't as fleshed out as I like (or as Strawberry Beta 2's was) - it was a matter of running out of time before I realised my error.
2) SDL got installed into site - I had to pin the version and forgot to tell it the M::B directions for installing into vendor.
I'll flesh out the release notes and make a better announcement (with a section of strawberryperl.com/beta/ dedicated to this) later today.