AWS Lambda now supports Node.js 14

You can now author AWS Lambda functions in Node.js 14 and use its new features, such as top-level-await, enhanced diagnostics, modifications of the streams APIs, and a revised JavaScript engine for better performance. Lambda functions written in Node.js 14 run on Amazon Linux 2, the latest generation of Amazon Linux. To learn more about writing functions in Node.js 14, see the Node.js programming model in the Lambda documentation.  

Source:: Amazon AWS