EC2 Auto Scaling adds batch instance termination
🔁 Amazon EC2 Auto Scaling now allows terminating up to 100 instances with a single TerminateInstanceInAutoScalingGroup API call, reducing API request volume when scaling down. Batch termination is intended for rapid scale-down scenarios like AI/ML training, container orchestrators, or event-driven fleets and validates all instances atomically before proceeding. Existing Auto Scaling behaviors such as lifecycle hooks and load balancer connection draining remain enforced for each instance. The capability is available in all AWS Regions at no additional cost.
