Talend solutions provide a version control system that enables users to have different versions of the same project in different Git branches and tags. Talend Administration Center enables you to create/delete branches and tags of the project stored on Git.
About Git branches: All branches/tags are visible for all projects on the same Git repository. Therefore, if you create branches/tags for one project, all other projects on the same Git repository will have the same list.
You can also manage Git branches and tags via the Metaservlet. For more information, see Non-GUI operation in metaServlet.