Vercel Workflow SDK Now Supports Inflight Cancellation
Original: Workflow SDK now supports inflight cancellation
Vercel's Workflow SDK gains inflight cancellation, letting developers stop running workflows programmatically.
Vercel has updated its Workflow SDK to support inflight cancellation, enabling developers to programmatically halt workflows that are already in progress. This addition gives teams finer control over long-running or event-driven processes without waiting for them to complete naturally. The feature is particularly useful for managing costs, handling user-triggered aborts, and improving overall workflow reliability.
Vercel has shipped a new capability in its Workflow SDK: inflight cancellation. As of June 16, 2026, developers building on Vercel's workflow infrastructure can now programmatically cancel workflows that are actively executing — not just prevent them from starting or let them run to completion.
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