Merge requests are a place to propose changes you've made to a project and discuss those changes with others
Interested parties can even contribute by pushing commits if they want to.
The username under which gitlab is running, has changed from gitlab to git. If you get the following message when pushing or pulling: email@example.com: Permission denied (publickey), then execute this command in your repository directory: git remote set-url origin firstname.lastname@example.org:namespace/project.git . (replace namespace and project by the appropriate values). Use git remote -v to check the current value.