Serverless application developers can now use the new Connectors attribute available in AWS Serverless Application Model (AWS SAM) to simplify authoring connectors and help keep SAM templates readable and maintainable over time. Previously, SAM customers could only define SAM connectors as a AWS::Serverless::Connector resource. While these resources simplified granting the appropriate level of access to the resources in their application’s infrastructure, customers also wanted to define the connections needed by a resource as part of the resource itself.
Source:: Amazon AWS