2.54.18 2026-09-14

AWS Billing

Features
- Increased the maximum number of services returned in the supportEligibleSpendByService field of ListEnterpriseSupportLinkedAccountCharges

Features
- AWS CodeDeploy now returns the deployment mode on GetDeployment and BatchGetDeployments. The new deploymentMode field on DeploymentInfo indicates whether a deployment used the standard deployment process or restarted the application using a previously installed revision (RESTART mode).

Features
- Amazon Glue releasing the new API ListIntegrationTableProperties and adding IntegrationArn to TargetTableConfig

Features
- Updated endpoint and partition metadata.
Performance Improvements
- Fix request-side performance regression that scaled with payload size for query and ec2 protocol services where the request endpoint was re-parsed as a URI. The internal HTTP_REQUEST_URI_BEFORE_MODIFY execution attribute is now deprecated and computed on demand from HTTP_REQUEST_ENDPOINT_BEFORE_MODIFY; the value the SDK records carries the scheme, host, port and path but no query string.

Features
- Increases the maximum session token size to 4,096 bytes and removes the packed policy size limit. Adds SessionTokenSize and SessionTokenUtilization fields and a new MinimumSessionTokenSize parameter. PackedPolicySize is deprecated.

Features
- This release adds support for custom volume tiering. You can now define custom tiers on a pricing rule's tiering configuration, where each tier specifies a usage range and the rate applied to usage in that range.

Features
- This release adds a dryRun option to Image Builder create APIs (except CreateImage), structured failure context on failed images including component and distribution failure details, and step retry attempt tracking.