Testing revealed a critical defect before release. Actions?

When a critical defect is identified before a release, it is necessary to act quickly and systematically:

1. Defect assessment: determine the impact on the product, users, and business. How critical is the error, and can the release be made with this defect?

2. Release suspension: if the defect is truly critical, the release should be postponed to prevent damage.

3. Informing the team and stakeholders: notify managers, developers, testers, and, if necessary, the customer about the problem and plans for its resolution.

4. Prioritizing fixes: allocate resources for quick defect resolution, possibly organizing an emergency bug fix.

5. Testing the fix: after fixing, conduct regression testing to ensure the defect is resolved and no new issues have appeared.

6. Replanning the release: determine a new release date considering the time needed for fixing and testing.

7. Documentation: record the causes of the defect and lessons learned to avoid similar situations in the future.

This approach helps minimize risks and maintain product quality.