There are several methods to: If you want to make a new modification the first check-in for a new branch, you may include the "—branch BRANCH-NAME" option to the commit command. To create a new branch from an existing check-beginning in's point, use the following command: an old branch NEW BRANCH-NAME BASIS The BASIS parameter specifies the name of the check-in from which the branch splits off, and the BRANCH-NAME argument specifies the name of the new branch. If you already have a fork in your check-in tree and want to make it into a branch, you may do this using the web interface. First, locate the check-in you want to make.