Changelog

Vercel Sandbox now supports forking a sandbox into a new one. Sandbox.fork() creates a new sandbox seeded from the source's latest saved snapshot, inheriting its configuration. Any parameter you pass overrides the copied value.

Vercel Connect now supports Custom Environments. Link connectors to Custom Environments for runtime token access and forward webhooks to them.

Pin requests to the US or EU with a single field that works across every provider, and get the serving region back on every response.

Agents can now reply in threads without repeated mentions, cancel or reset a conversation, and react to any event your Slack app subscribes to.

AI Gateway now supports WebSocket mode for the OpenAI Responses API, with persistent connections, previous_response_id continuation, and realtime voice sessions.

Nuxt 4.5.1 and 3.21.10 fix eight security advisories. Deployments on Vercel are automatically protected, but upgrading is still required.

Kimi K3 and Kimi K3 Fast from Moonshot AI are now available on AI Gateway with Zero Data Retention, served by US-based providers including Baseten and Fireworks, with automatic failover for higher uptime and a faster serving path for lower latency.

Run Claude Managed Agents with Chat SDK. Anthropic's quickstart pairs a persistent agent session with a streaming browser chat, portable to Slack and beyond.