v2.56.0 v2.55.0
pydantic/pydantic-aiOct 13, 2026 → Oct 9, 20260 days between releases
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Analyzing what changed between v2.56.0 and v2.55.0. This page updates automatically — usually within a minute.
The Two Releases
v2.56.0 (2026-10-13)
Oct 13, 2026· 8 days ago
This release introduces major enhancements to the Skills layer, including support for Python 3.15 and the new Gemini 4 Argon model. It also adds a SmolSandbox for local microVM execution and integrates with Render Workflows for durable execution.
Full release notesv2.55.0 (2026-10-09)
Oct 9, 2026· 12 days ago
This release enforces a Python 3.11+ requirement and introduces significant improvements to prompt caching, cross-provider support, and database backends. It adds a new `Conversation` object for state management across runs, support for the `claude-haiku-5-5` model, and new Postgres stores for messages and media.
Full release notes