<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=369412) </details> <!--IssueSummary end--> Follow-up for https://gitlab.com/gitlab-org/gitlab/-/issues/340941 ### Problem The changelog API has [a hard limit of 15000 commits](https://docs.gitlab.com/ee/api/repositories.html#add-changelog-data-to-a-changelog-file). ### Proposal * Add an asynchronous API endpoint for changelog generation. It will allow us to control the workload and create changelogs from unlimited commits' ranges. * [Update usages of changelog API](https://gitlab.com/gitlab-org/release-tools/blob/master/lib/release_tools/public_release/gitlab_release.rb) ([see comment](https://gitlab.com/gitlab-org/gitlab/-/issues/340941#note_999332018))