EC2 Auto Scaling now offers an instance lifecycle policy that lets you retain instances when termination hooks fail or time out. This feature allows for custom actions during instance wait states and gives you more control over graceful shutdowns, which is useful for stateful applications.

Amazon EC2 Auto Scaling now allows users to force cancel instance refreshes immediately, enhancing control during critical updates by enabling rapid deployment changes without waiting for ongoing instance activities. This feature is particularly useful in emergencies when service disruptions occur. Users can implement this by setting the WaitForTransitioningInstances parameter to false in the CancelInstanceRefresh API call.