Runtime versions support policy - Amazon CloudWatch
CloudWatch Synthetics runtime deprecation dates
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Runtime versions support policy

Synthetics runtime versions are subject to maintenance and security updates. When any component of a runtime version is no longer supported, that Synthetics runtime version is deprecated.

You can't create canaries using deprecated runtime versions. Canaries that use deprecated runtimes continue to run. You can stop, start, and delete these canaries. You can update an existing canary that uses a deprecated runtime version by updating the canary to use a supported runtime version.

CloudWatch Synthetics notifies you by email if you have canaries that use runtimes that are scheduled to be deprecated in the next 60 days. We recommend that you migrate your canaries to a supported runtime version to benefit from the new functionality, security, and performance enhancements that are included in more recent releases.

CloudWatch Synthetics runtime deprecation dates

The following table lists the date of deprecation of each deprecated CloudWatch Synthetics runtime.

Runtime Version Deprecation date

syn-python-selenium-5.1

February 3, 2026

syn-python-selenium-5.0

February 3, 2026

syn-python-selenium-4.1

February 3, 2026

syn-python-selenium-4.0

February 3, 2026

syn-nodejs-puppeteer-7.0

January 22, 2026

syn-nodejs-puppeteer-6.2

January 22, 2026

syn-nodejs-puppeteer-5.2

January 22, 2026

syn-python-selenium-3.0

January 22, 2026

syn-python-selenium-2.1

January 22, 2026

syn-nodejs-puppeteer-6.1

March 8, 2024

syn-nodejs-puppeteer-6.0

March 8, 2024

syn-nodejs-puppeteer-5.1

March 8, 2024

syn-nodejs-puppeteer-5.0

March 8, 2024

syn-nodejs-puppeteer-4.0

March 8, 2024

syn-nodejs-puppeteer-3.9

January 8, 2024

syn-nodejs-puppeteer-3.8

January 8, 2024

syn-python-selenium-2.0

March 8, 2024

syn-python-selenium-1.3

March 8, 2024

syn-python-selenium-1.2

March 8, 2024

syn-python-selenium-1.1

March 8, 2024

syn-python-selenium-1.0

March 8, 2024

syn-nodejs-puppeteer-3.7

January 8, 2024

syn-nodejs-puppeteer-3.6

January 8, 2024

syn-nodejs-puppeteer-3.5

January 8, 2024

syn-nodejs-puppeteer-3.4

November 13, 2022

syn-nodejs-puppeteer-3.3

November 13, 2022

syn-nodejs-puppeteer-3.2

November 13, 2022

syn-nodejs-puppeteer-3.1

November 13, 2022

syn-nodejs-puppeteer-3.0

November 13, 2022

syn-nodejs-2.2

May 28, 2021

syn-nodejs-2.1

May 28, 2021

syn-nodejs-2.0

May 28, 2021

syn-nodejs-2.0-beta

February 8, 2021

syn-1.0

May 28, 2021