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# Workflow 4\.1 Beta: Event\-sourced architecture **Published:** February 3, 2026 | **Authors:** Pranay Prakash, Karthik Kalyanaraman, Karthik Kalyanaraman, John Lindquist --- Workflow 4.1 Beta changes how workflows track state internally. Instead of updating records in place, every state change is now stored as an event, and current state is reconstructed by replaying the log. This release also adds support for provider-executed tools and higher throughput. ## **What event sourcing means...

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