I just downloaded the current version of Sourcetree from the Mac App Store and saw that 1.3 will bring the bundled version of Mercurial to 2.0.1. Will version 1.3 be a free upgrade for me? Also do you have an ETA as to when it will be available? Lastly, if I manually install Mercurial 2.0.1 and have Sourcetree use the "system Mercurial", will a subsequent upgrade to version 1.3 be painless?