• Aws\ - Allow stdClass in Validator for document types for empty documents to be encoded as JSON objects rather than arrays.
• Aws\GuardDuty - Make accountIds a required field in GetRemainingFreeTrialDays API to reflect service behavior.
• Aws\EC2 - Adds support for linkedGroupId on the CreatePlacementGroup and DescribePlacementGroups APIs. The linkedGroupId parameter is reserved for future use.
• Aws\PCS - Change API Reference Documentation for default Mode in Accounting and SlurmRest
• Aws\ConfigService - Added supported resourceTypes for Config from July to November 2025