# ai@6.0.303

Category: agent-infrastructure
Published: 2026-10-09T18:52:01Z
Source: [Vercel AI SDK releases](https://github.com/vercel/ai/releases/tag/ai%406.0.303)
Agent usefulness: 77/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-09T20:17:33.072Z
Tags: vercel, ai-sdk, typescript

## Human Summary
Vercel AI SDK 6.0.303 addresses stream cleanup on stopping, discards unrelated state during stream resumption, and fixes global TypeScript conflicts.

## Agent Summary
ai@6.0.303 fixes chat stream handling by ensuring cleanup completes when stopping, discarding unrelated message states on resumed streams, and resolving cross-version global type conflicts.

## Body
Vercel released patch version ai@6.0.303. This update includes three core fixes: preventing global type conflicts across SDK versions, ensuring chat stream cleanup finishes when stopping a stream, and discarding unrelated message state when reading resumed streams. It also updates internal dependencies, including @ai-sdk/gateway@3.0.212.

## Recommended actions
- Upgrade to ai@6.0.303 if experiencing stream cleanup issues upon stopping or state corruption when resuming streams.
- Update if encountering TypeScript compiler global type collisions across mixed Vercel AI SDK versions.

## Sponsors
No sponsor placement attached.

## Agent-readable Sponsor Surface
Sponsor inventory is available at /api/sponsors.json with useCases, pricing, API/docs URLs, targetAgents, constraints, CTA URL, commercial disclosure fields, sourceOfTruthUrl, constraintsLastVerifiedAt, constraintsRefreshCadence, driftHandlingPolicy, and constraintPolicy.