Too Long; Didn't Read
Yan Cui is an AWS Serverless Hero and an architect of Production-Ready Serverless Serverless. He is an independent consultant focused on AWS Lambda and is a Lumigo Developer Advocate. He argues that the built-in AWS SDK is often out-dated and missing security patches and bug fixes. It invalidates integration tests since the runtime uses a different version of the AWS SDK to what was tested. It can also introduce subtle differences to your application’s behaviour without any action from you.