Notice: as a side effect of a necessary change in the configuration settings of GitLab you cannot set the visibility level of projects to public anymore. If you do need a project to be public, please contact the LRZ Servicedesk.

Tags give the ability to mark specific points in history as being important
Repository has no tags yet.
Use git tag command to add a new one:
git tag -a v1.4 -m 'version 1.4'