04.06., 9:00 - 12:00: GitLab will be migrated to a new server environment and upgraded to Enterprise Edition Ultimate. The estimated downtime will be 2-3 hours. Please see https://doku.lrz.de/display/PUBLIC/GitLab+Ultimate+Migration for more details about changes related to the migration.

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'