AWS 275 days
AWS Lambda python3.10 end of life (Lambda blocks creating new functions)
By July 29, 2027: migrate functions to python3.13 or newer before the block. After that, AWS Lambda refuses to create new functions on python3.10. Existing ones keep running and still accept updates, for now. Source: docs.aws.amazon.com, checked 2026-10-17.
- What's retiring
- python3.10: Lambda blocks creating new functions (AWS Lambda)
- When
- July 29, 2027
- Days left
- 275 days left, as of 2026-10-27.
- What happens
- Deprecated runtime; new functions can no longer be created.
- 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)
Get a heads-up before this deadline hits.
A free weekly email of upcoming AWS, Azure and GCP deadlines, with what to do about each. Unsubscribe anytime.
Providers move dates. Check the official source before you plan a migration around this one.