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AWS Lambda Python 3.10 (python3.10) end of life (runtime deprecation)

By October 31, 2026: migrate functions to python3.13 or newer. After that, Python 3.10 (python3.10) on AWS Lambda is still yours to run; it just isn't anyone's job to patch. Source: docs.aws.amazon.com, checked 2026-10-15.

What's retiring
Python 3.10 (python3.10) runtime deprecation (AWS Lambda)
When
October 31, 2026
Days left
4 days left, as of 2026-10-27.
What happens
No more security patches or support; later Lambda blocks function create, then update.
What to do
Migrate functions to python3.13 or newer.
Kind of change
Runtime end of life
Official source
docs.aws.amazon.com ↗ (last checked 2026-10-15)

Providers move dates. Check the official source before you plan a migration around this one.

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