AWS 155 days
AWS Lambda Ruby 3.3 (ruby3.3) end of life (runtime deprecation)
By March 31, 2027: migrate functions to ruby3.4 or ruby4.0. That's when AWS Lambda stops supporting Ruby 3.3 (ruby3.3), and the security patches stop with it. Source: docs.aws.amazon.com, checked 2026-10-15.
- What's retiring
- Ruby 3.3 (ruby3.3) runtime deprecation (AWS Lambda)
- When
- March 31, 2027
- Days left
- 155 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 ruby3.4 or ruby4.0.
- Kind of change
- Runtime end of life
- Official source
- docs.aws.amazon.com ↗ (last checked 2026-10-15)
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Providers move dates. Check the official source before you plan a migration around this one.