AWS Lambda now supports Java 17 as both a managed runtime and a container base image. Developers creating serverless applications in Lambda with Java 17 can take advantage of new language features including Java records, sealed classes and multi-line strings. The Lambda Java 17 runtime also has numerous performance improvements, including optimizations when running Lambda functions on Graviton 2 processors. It supports AWS Lambda Snap Start (in supported Regions) for fast cold starts, and the latest versions of the popular Spring Boot 3 and Micronaut 4 application frameworks. For more information on Lambda’s support for Java 17, see our blog post at Java 17 runtime now available in AWS Lambda.