# Introducing public preview runtimes on AWS Lambda, starting with Node.js 26 and Python 3.15

DevFeed: [Introducing public preview runtimes on AWS Lambda, starting with Node.js 26 and Python 3.15](<https://devfeed.tech/articles/introducing-public-preview-runtimes-on-aws-lambda-starting-with-node-js-26-and-python-3-15-4666.md>)

Original publisher: [Read original article](<https://aws.amazon.com/blogs/compute/introducing-public-preview-runtimes-on-aws-lambda-starting-with-node-js-26-and-python-3-15/>)

Author: Jonathan Tuliani

Published: 2026-08-15T14:09:35Z

Content type: news

Language: en

Sources: [AWS Compute Blog](<https://devfeed.tech/sources/aws-compute-blog.md>)

Topics: [AWS Lambda](<https://devfeed.tech/topics/aws-lambda.md>), [Node.js](<https://devfeed.tech/topics/node-js.md>), [Python](<https://devfeed.tech/topics/python.md>), [Amazon Web Services](<https://devfeed.tech/topics/aws.md>)

Tags: [announcements](<https://devfeed.tech/tags/announcements.md>), [availability](<https://devfeed.tech/tags/availability.md>), [aws](<https://devfeed.tech/tags/aws.md>), [aws-lambda](<https://devfeed.tech/tags/aws-lambda.md>), [benchmarking](<https://devfeed.tech/tags/benchmarking.md>), [china](<https://devfeed.tech/tags/china.md>), [foundational-100](<https://devfeed.tech/tags/foundational-100.md>), [govcloud](<https://devfeed.tech/tags/govcloud.md>), [infrastructure-as-code](<https://devfeed.tech/tags/infrastructure-as-code.md>), [node-js](<https://devfeed.tech/tags/node-js.md>), [python](<https://devfeed.tech/tags/python.md>), [release](<https://devfeed.tech/tags/release.md>)

## AI overview

AWS Lambda introduces public preview runtimes for Node.js 26 and Python 3.15, allowing developers to test upcoming language versions before general availability and provide feedback while breaking changes remain possible.

## Source excerpt

AWS Lambda introduces public preview runtimes, a new way to try upcoming language versions before GA. Start using Node.js 26 and Python 3.15 today, provide feedback, and help shape runtime quality before general availability.