Neither do the Sublime Text developers; even the main release of Sublime Text 3 is listed as beta, and the download link on the front page of their website is still Sublime Text 2.
My point is that the "released" version has been abandoned. He's not supporting previous versions at all, you pay for access to an actual beta build, but if you happened to buy the full product you're SOL
I'm using the 3059 build and it doesn't change permissions of pre-existing files. And this build is supposed to solve that for the dev builds (I have to check it).