Add support for Gitlab hosted privately or publicly.
You can either:
- Use the free app released by Gitlab. Please notice that it is now possible to also use the free app to integrate with self-hosted Gitlab, as documented in: Install the GitLab.com for Jira Cloud app for self-managed instances
- Follow the instructions in https://docs.gitlab.com/ee/user/project/integrations/jira.html
- Use any of the other app (free or paid) available on our marketplace: https://marketplace.atlassian.com/search?hosting=cloud&product=jira&query=gitlab