If you rolled out, the deadline has passed, and then a critical bug appears in production — what do you do?

If a critical bug is found in production after release and the deadline has passed, it is necessary to:

1. Immediately notify the team and interested parties — developers, managers, support.
2. Assess the impact of the bug — how critical it is, how many users it affects.
3. Prioritize the fix — a critical bug requires an urgent hotfix.
4. Prepare and test the fix — quickly but with quality, to avoid introducing new errors.
5. Release a patch to production with minimal downtime.
6. Monitor the system after the fix to confirm the issue has been resolved.
7. Conduct a retrospective — find out why the bug passed through and improve processes (e.g., strengthen testing, add automation).

It is important to stay calm, act according to the plan, and ensure transparent communication.