Description: The Update Policy in AWS CloudFormation is a property that specifies how updates to a resource within a CloudFormation stack are handled. This policy allows users to define the behavior of resources when changes are made to the stack template. Several options are available, such as ‘Retain’, which keeps the resource during the update, or ‘Delete’, which removes the resource. Additionally, a ‘Snapshot’ policy can be set, which creates a backup of the resource before making changes. This flexibility is crucial for cloud infrastructure management, as it allows administrators to minimize downtime and better manage the risks associated with updates. Proper implementation of the Update Policy not only optimizes the deployment process but also ensures that critical resources remain operational during transitions, which is essential in production environments where availability is paramount.