[ { "type": "api-change", "category": "ConnectCases", "description": "This release adds the ability to conditionally require fields on a template. Check public documentation for more information." }, { "type": "api-change", "category": "CostOptimizationHub", "description": "This release enables AWS Cost Optimization Hub to show cost optimization recommendations for Amazon Auto Scaling Groups, including those with single and mixed instance types." }, { "type": "api-change", "category": "S3", "description": "Updated list of the valid AWS Region values for the LocationConstraint parameter for general purpose buckets." }, { "type": "api-change", "category": "CloudFormation", "description": "We added 5 new stack refactoring APIs: CreateStackRefactor, ExecuteStackRefactor, ListStackRefactors, DescribeStackRefactor, ListStackRefactorActions." } ]