Paste your SAM / CloudFormation / Terraform / Serverless config (or a list of runtimes), or click the runtimes you use. This checks them against EOLkits' cited snapshot of the AWS runtime deprecation schedule and shows the tracked create/update block dates. Pasted input stays in your browser; bounded first-party usage events may be sent.
Dates come from the AWS Lambda runtime deprecation table and can shift; the per-runtime migration guides link the AWS source. AWS documents phased create/update restrictions; verify the current runtime status before planning.
Each deprecated runtime fails in specific ways — removed stdlib modules, the unbundled AWS SDK v2 on Node 18+, native-wheel/ABI breaks, Amazon Linux 2 → 2023 package renames. See the common error fixes, run the free scanner, or check the repository evidence report ($299, 30-day money-back) for exact matches and a remediation order.