Slack communityLog inBook a demo
  • Overview
    • Introduction
    • How it works
    • Quickstart
    • Project structure
    • Adding custom code
    • Capabilities
    • Fern Autorelease
    • Customer showcase
  • Generators
  • Deep dives
    • SDK user features
    • Customize method names
    • Setup local SDK previews
    • Configure global headers
    • Dynamic authentication
    • Configure auto-pagination
    • Configure idempotency
    • Filter your endpoints (audiences)
    • Customize your README
    • Retries with Backoff
    • Self-hosted SDKs
    • Testing
  • Reference
    • generators.yml
GeneratorsPython

Changelog

December 16, 2025
December 16, 2025

4.46.1

(fix): Fix OAuth token handling for optional expires_in field with default fallback.

4.46.0

(feat): FastAPI Python codegen now emits parameter markers via typing.Annotated[...] with standard Python defaults for better FastAPI/Pydantic compatibility.

Was this page helpful?
Edit this page
Previous

Changelog

Next

December 15, 2025

Built with
LogoLogo
Slack communityLog inBook a demo