Before you start porting your activity you are encouraged to branch off a stable branch. This will allow you to keep on doing stable releases on the stable branch and new releases on the master branch.
The latest release was version 3. We
highly recommend that you use the 'sugar-0.94' as the stable branch name because this will keep the repositories consistent and eases the development work. In git you can create a branch like this:
git branch sugar-0.94
This creates a local branch, as you can see by running 'git branch'; you should see the following: