Description: Update rollback in AWS CloudFormation is the process by which a stack is restored to its previous state after a failed update. This mechanism is crucial for maintaining the stability and integrity of cloud resources, as it allows system administrators and developers to revert changes that may have caused operational issues. When an update to a stack is performed, CloudFormation attempts to apply the changes specified in the template. However, if an error is encountered during this process, the update rollback is automatically triggered, undoing the changes and restoring the stack to its previous state. This process not only minimizes downtime but also protects the data and configuration of resources. Update rollback is an essential feature for infrastructure as code management, as it provides an additional layer of security and confidence when implementing changes in production environments. Additionally, it allows development teams to experiment with new configurations without the fear of causing permanent service disruptions.
