We have recently detected a brute-force attack against this server. As a precautionary measure, we strongly encourage you to enable 2-factor authentication for your account. The procedure is explained on our blog: https://cylab.be/blog/164/gitlab-enable-2-factor-authentication-2fa

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.