Amazon ECS Amazon Linux 2 AMI deprecation

AWS will end support for Amazon Linux 2. Starting in January 2026, AWS Batch will change the default AMI for new Amazon ECS compute environments from Amazon Linux 2 to Amazon Linux 2023. We recommend migrating AWS Batch Amazon ECS compute environments to Amazon Linux 2023, to maintain optimal performance and security.

For more information about the Amazon Linux 2 end-of-life, see Amazon Linux 2 FAQs.

For information about differences between Amazon Linux 2 and Amazon Linux 2023, see Compare Amazon Linux 2023 and Amazon Linux 2 in the Amazon Linux 2023 User Guide.

For information about changes in Amazon Linux 2023 for Amazon ECS-optimized AMI, see Migrating from an Amazon Linux 2 to an Amazon Linux 2023 Amazon ECS-optimized AMI in the Amazon ECS User Guide.

For help migrating AWS Batch Amazon ECS compute environments from Amazon Linux 2 to Amazon Linux 2023, see How to migrate from ECS AL2 to ECS AL2023.