v2.39.0 v2.38.0
pydantic/pydantic-aiSep 4, 2026 → Sep 3, 20260 days between releases
Generating AI comparison
Analyzing what changed between v2.39.0 and v2.38.0. This page updates automatically — usually within a minute.
The Two Releases
v2.39.0 (2026-09-03)
Sep 4, 2026· 2 months ago
This release introduces support for the new OpenAI `gpt-6-astra` model and includes several bug fixes related to instrumentation, context export caching, and Azure content filtering. It also restores specific configuration options for the Instrumentation spec.
Full release notesv2.38.0 (2026-09-03)
Sep 3, 2026· 2 months ago
This release introduces support for new AI models including Gemini 3.8 Flash and Claude Fable/Mythos 5.1, alongside new context tracking capabilities. It also allows applications to emit custom events into the run event stream and includes various bug fixes for streaming and tool handling across different providers.
Full release notes