Updates
1. Google Gen AI SDK publishes v2.21.0
2.21.0 (2026 09 02) Features Add Gemini 3.8 Flash model to SDKs and update Flash model descriptions (4a969fe).
Proof: The Google Gen AI SDK release records v2.21.0 / 2.21.0 for Google Gen AI SDK.
Impact: Teams evaluating Google Gen AI SDK v2.21.0 can compare its documented input scope, limits, and deployment fit.
Watch next: Watch Google Gen AI SDK - github.com for endpoint examples, limits, issue reports, and whether developers can adopt Google Gen AI SDK publishes v2.21.0 cleanly.
Canonical host: github.com