Posted On: Apr 12, 2023

AWS Lambda now supports Node.js 18 as a managed runtime in the AWS GovCloud (US) Regions. Developers creating serverless applications in Lambda with Node.js 18 in the AWS GovCloud regions can take advantage of new features such as an upgrade of the bundled AWS SDK for JavaScript to v3 and improved support for deploying ES Modules using Lambda layers. This release also provides access to Node.js 18 language enhancements, including the experimental ‘fetch’ API. For more information on Lambda’s support for Node.js 18, see our blog post at Node.js 18.x runtime now available in AWS Lambda.

To deploy Lambda functions using Node.js 18, upload the code through the Lambda console and select the Node.js 18 runtime. You can also use the AWS CLI, AWS Serverless Application Model (AWS SAM) and AWS CloudFormation to deploy and manage serverless applications written in Node.js 18. Additionally, you can also use the AWS-provided Node.js 18 base image to build and deploy Node.js 18 functions using a container image. To migrate existing Lambda functions running earlier Node versions, review your code for compatibility with Node.js 18 and then update the function runtime to Node.js 18.

Node.js 18 is the latest long-term support (LTS) release of Node.js and will be supported for security and bug fixes until April 2025. AWS will automatically apply updates to the Node.js 18 managed runtime and to the AWS-provided Node.js 18 base image, as they become available.

Visit our product page for more information about AWS Lambda or sign in to the AWS Lambda console to get started.