Aws\WAFV2- You can now delete an API key that you've created for use with your CAPTCHA JavaScript integration API.Aws\ECS- This release is a documentation only update to address customer issues.Aws\AppSync- Support for environment variables in AppSync GraphQL APIsAws\CloudWatchLogs- This release adds a new field, logGroupArn, to the response of the logs:DescribeLogGroups action.Aws\OpenSearchService- This release adds clear visibility to the customers on the changes that they make on the domain.Aws\ElasticsearchService- This release adds clear visibility to the customers on the changes that they make on the domain.