The direct answer
Rollback needs to address content, configuration and data changes that may not all reverse together. A previous code version is only part of the picture.
A practical check
List the affected systems and identify reversible and one-way changes. Check backup and restoration evidence before the release.
Choosing the next step
Use an agreed recovery path and a clear trigger for invoking it. Verify the restored customer journey rather than assuming the old build guarantees the old behavior.
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