[ { "type": "api-change", "category": "AppSync", "description": "AWS AppSync now supports for None Data Source, CreateApiKey now supports setting expiration on API keys, new API UpdateApiKey supports updating expiration on API keys. " }, { "type": "api-change", "category": "LexModelBuildingService", "description": "Amazon Lex now provides the ability to export and import your Amazon Lex chatbot definition as a JSON file." } ]