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AWS Lambda durable functions increases durable operation and checkpoint payload limits

calendar_today October 13, 2026 person aws@amazon.com domain amazon-q

Starting today, AWS Lambda durable functions increases the maximum number of durable operations per execution from 3,000 to 30,000, and the maximum checkpoint payload size from 256 KB to 1 MB. Higher operation limits let you safely do more work in a single execution including expanding iterative loops, polling for longer time periods, and building more complex rollback paths that run when a step fails. At 1 MB, checkpoint payloads match the maximum payload size of asynchronous Lambda invocations, and integration services such as Amazon SQS, and Amazon EventBridge, so a workflow can persist a f

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