We transferred this GitLab instance to git.bau-ha.us. References to gitlab.bau-ha.us should still work. But it is good practice to migrate your projects to the new domain. If you experience any problems feel free to contact support@m18.uni-weimar.de

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'