Just because the Copilot PR review hasn't been updated doesn't mean it's not in effect. The GitHub documentation makes it clear that when you push a new commit to a PR that has already been reviewed by Copilot, Copilot will not automatically re-review these changes. You need to re-request code review.
First look at whether it is the result of the old review
After changing the code, many people think that Copilot will automatically rerun like CI. In fact, this is not the case. The comments it left before are still based on the old diff, and the new commit does not automatically trigger a full review.
If you have fixed the problem it pointed out, but the comment is still there, first make sure that the comment corresponds to the old line number, the old commit, or the real problem in the current diff.
How to re-request
Re-request a Copilot review in the GitHub PR page, or trigger it with GitHub CLI or automation rules per team workflow. The key is to let Copilot run the latest diff again, rather than waiting for it to come back on its own.
If your organization has automatic code review turned on, it also depends on the rule coverage: whether all PRs are reviewed, or only specific branches, repositories, and authors are reviewed.
Don't treat Copilot as the only reviewer
Copilot Code Review is great for catching obvious bugs, test gaps, boundary conditions, and style issues, but it's not a substitute for business owners. Changes such as payments, permissions, data migration, and security policies still need to be seen manually.
A better way to use it is to let Copilot find low-level problems first, and then let people review the business logic. This saves time and doesn't put the blame on AI.
The most stable investigation
Confirm the latest PR submission, confirm if Copilot is requested as a reviewer, confirm if your organization's policy allows it, and confirm if the comment is from an old diff. Actively re-requesting after changing the code is the key to letting Copilot review the latest code.
