New model router and automatic model fallbacks.
New streaming architecture, scoring improvements, and more.
Resumable streams, structured output API change, bundling overhaul, and more.
Zod v4 support with v3 compatibility and more.
New streamVNext and generateVNext methods with AI SDK v5 support, output processors, and more.
This week we've shipped a major RAG enhancement with semantic markdown chunking and updated our A2A implementation to spec v0.3.0.
