Renaming mainline branches
When you rename a mainline branch, the mainline root repository and root repositories for child branches, including snapshot branches, are also renamed.
To rename baseline, snapshot, or workspace branches, see Renaming branches.
1. Select the mainline branch to rename and choose Tools > Administration > Rename Mainline Branch.
The Rename Mainline Branch dialog box opens.
2. Enter a new name and any comments.
You cannot use the same name as any active, inactive, or removed mainline branches.
3. Click OK.
You are prompted to confirm the rename.
4. Click Rename Mainline.
A progress indicator opens and lets you know the mainline branch is being renamed.