Vercel / update detail

Workflow SDK now writes over WebSockets on Vercel

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Vercel·Nov 9, 2026, 12:00 AMFeatureAI-assisted summary

Summary

Workflow SDK v5.2.0+ now sends event and stream writes to Vercel Workflows over a WebSocket by default, replacing per‑write HTTP requests.
No code changes are required; existing streaming code works and in‑flight runs stay on their original deployment.
Benchmarks show up to 4.2× faster stream delivery and fewer HTTP calls, improving performance and reducing costs.

featuresource healthy

Official source Last checked Nov 11, 2026, 4:00 PM

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AI-assisted summarysource healthyLast checked Nov 11, 2026, 4:00 PM

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