AWS Lambda now supports creating serverless applications using Ruby 3.3. Developers can use Ruby 3.3 as both a managed runtime and a container base image, and AWS will automatically apply updates to the managed runtime and base image as they become available.

The Lambda Ruby 3.3 runtime is built on the new Amazon Linux 2023 runtime, which is based on the AL2023 minimal container image. This provides a significantly smaller deployment footprint than earlier Amazon Linux 2-based runtimes, updated versions of common libraries such as glibc, and a new package manager. The Ruby 3.3 runtime also provides access to the latest Ruby language features.

The Ruby 3.3 runtime is available in all Regions where Lambda is available, except for China and GovCloud Regions.

You can use the full range of AWS deployment tools, including the Lambda console, AWS CLI, AWS Serverless Application Model (AWS SAM), CDK, and AWS CloudFormation to deploy and manage serverless applications written in Ruby 3.3. For more information on using Ruby 3.3 in Lambda, see our documentation. For more information about AWS Lambda, visit our product page.