AWS Capacity Reservation Resource Groups Now Handle ML Blocks and Interruptible Reservations
AWS just expanded Capacity Reservation Resource Groups to support Amazon EC2 Capacity Blocks for ML and interruptible Capacity Reservations alongside traditional On-Demand ones. You can now mix reservation types in a single group, set fallback priorities to On-Demand, and manage your entire EC2 capacity portfolio more flexibly—available across all AWS Regions except GovCloud and China.
source: [aws/whats-new]