AWS 275 days
AWS Lambda python3.9 end of life (Lambda blocks creating new functions)
By July 29, 2027: move to a supported runtime before the block. After that, AWS Lambda refuses to create new functions on python3.9. Existing ones keep running and still accept updates, for now. Source: docs.aws.amazon.com, checked 2026-10-15.
- What's retiring
- python3.9: Lambda blocks creating new functions (AWS Lambda)
- When
- July 29, 2027
- Days left
- 275 days left, as of 2026-10-27.
- What happens
- Already-deprecated runtime; new functions can no longer be created.
- What to do
- Move to a supported runtime before the block.
- Kind of change
- Platform block
- Official source
- docs.aws.amazon.com ↗ (last checked 2026-10-15)
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