Create and manage milestones across projects, to work towards a target date from the group level. View all the issues for the milestone you’re currently working on across multiple projects.
Powerful Issue Tracker
Quickly set the status, assignee or milestone for multiple issues at the same time or easily filter them on any properties. See milestones and issues across projects.
Due dates for individual issues
In GitLab, you can set a due date for individual issues. This is very convenient if you have small tasks with a specific deadline.
GitLab has Issue Boards, each list of an Issue Board is based on a label that exists in your issue tracker. The Issue Board will therefore match the state of your issue tracker in a user-friendly way.
Visualize multiple epics across time in a roadmap view
Time Tracking in GitLab lets your team add estimates and record time spent on issues and merge requests.
and so more !!!
Gitlab in details