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AWS Lambda now supports SnapStart for container image functions

Published
September 2, 2026
https://aws.amazon.com/about-aws/whats-new/2026/07/aws-lambda-snapstart-container/

AWS Lambda SnapStart for Container Images

AWS Lambda now supports SnapStart for functions packaged as container images, reducing startup times from several seconds to sub-second. This feature is available in all commercial AWS Regions except Asia Pacific (New Zealand) and Asia Pacific (Taipei).

What to do

  • Activate SnapStart for new or existing container image functions using AWS Lambda API, AWS Console, AWS CLI, CloudFormation, SAM, SDK, or AWS CDK.
  • For AWS base images (Java, Python,.NET), the experience remains the same. For other base images, refer to the developer guide.

Source: AWS release notes




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