
AWS Lambda now supports Python 3.11 runtime with significant performance improvements including 25% faster execution, reduced startup times, and new language features for building more efficient serverless applications.


<div><p>This article announces Python 3.11 runtime availability in AWS Lambda, highlighting significant performance improvements and new language features.</p><ul><li>Python 3.11 is 25% faster than Python 3.10 on average</li><li>Faster startup times (10-15% improvement) with frozen core modules</li><li>Faster function execution with specialized adaptive interpreter for hot code</li><li>New language features: variadic generics, Self type, LiteralString annotation</li><li>Pre-installed AWS SDK now in /var/lang/lib/python3.11 for easier overrides</li><li>Available via AWS Console, CLI, SAM, CDK, and container base images</li><li>Compatible with Lambda Powertools and Lambda@Edge</li></ul><p>Python 3.11 enables developers to build faster, more efficient serverless applications with improved performance and new language capabilities.</p></div>


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