<!--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=337648) </details> <!--IssueSummary end--> ## Problem to Solve It's currently possible [post a comment to a commit](https://docs.gitlab.com/ee/api/commits.html#post-comment-to-commit), but this is only supported on new lines in the diff of the commit. ## Proposal It should be possible to also comment on the old lines of the diff.