AWS 308 days
AWS Lambda python3.10 end of life (Lambda blocks function updates)
By August 31, 2027: migrate functions to python3.13 or newer before the block. After that, AWS Lambda stops accepting code and config updates on python3.10. The one change it still takes is a runtime upgrade. Source: docs.aws.amazon.com, checked 2026-10-17.
- What's retiring
- python3.10: Lambda blocks function updates (AWS Lambda)
- When
- August 31, 2027
- Days left
- 308 days left, as of 2026-10-27.
- What happens
- Code and config updates blocked for python3.10 functions; only a runtime upgrade is still allowed.
- What to do
- Migrate functions to python3.13 or newer before the block.
- Kind of change
- Platform block
- Official source
- docs.aws.amazon.com ↗ (last checked 2026-10-17)
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Providers move dates. Check the official source before you plan a migration around this one.