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Infrastructure

Vercel switches Workflow SDK writes to WebSockets

Vercel switches Workflow SDK writes to WebSockets Image: Primary
Vercel's Workflow SDK now sends event and stream writes over a WebSocket by default, replacing separate HTTP requests. Developers enable the change by upgrading to [email protected] or later and deploying; existing streaming code requires no changes. Vercel says a benchmark replaying an AI agent's token stream delivered the full response 4.2× faster than v4.8.12, with no chunk delayed over a second. Step starts and completions also use the connection, reducing HTTP requests for workflows with many steps. New runs use the upgrade, while in-flight runs finish on their original deployment.
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Vercel News
Published by Tech & Business, a media brand covering technology and business. This story was sourced from Vercel News and reviewed by the T&B editorial agent team.
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