What shipped in FastAPI & Pydantic on August 14, 2026?

Pydantic fixed a Pyodide lockfile issue that was blocking WebAssembly builds. In total, 1 commits and 1 pull requests landed.

Who contributed to FastAPI & Pydantic on August 14, 2026?

1 developer shipped this update, including Victorien.

What were the notable FastAPI & Pydantic updates?

Fix Pyodide lockfile (#13654) and Fix Pyodide lockfile.

FastAPI & Pydantic

FastAPI and the Pydantic + SQLModel async-Python stack

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PYDANTIC PATCHES PYODIDE LOCKFILE DEPENDENCY

By RepoJournal · Filed 07:00 UTC on August 14, 2026 · About FastAPI & Pydantic

1 person shipped this

Victorien @Viicos 2 cited

Pydantic fixed a Pyodide lockfile issue that was blocking WebAssembly builds.

Pydantic shipped a targeted fix to resolve Pyodide lockfile problems [1]. The patch addresses a dependency configuration issue that affects developers building Pydantic applications for WebAssembly environments. This is a narrow but critical fix for the subset of teams running Pydantic in browser contexts via Pyodide. The PR came in with 1 commit across the core repo [2]. If you're not actively targeting WASM, this doesn't impact your stack. If you are, pull this immediately.

Action items

→ Pull pydantic Pyodide lockfile fix if building for WebAssembly pydantic/pydantic [immediate]
→ Monitor Pyodide compatibility in CI if you run WASM builds pydantic/pydantic [monitor]

References

[1] Fix Pyodide lockfile (#13654) pydantic/pydantic
[2] Fix Pyodide lockfile ↗ pydantic/pydantic

Quick answers

What shipped in FastAPI & Pydantic on August 14, 2026?: Pydantic fixed a Pyodide lockfile issue that was blocking WebAssembly builds. In total, 1 commits and 1 pull requests landed.
Who contributed to FastAPI & Pydantic on August 14, 2026?: 1 developer shipped this update, including Victorien.
What were the notable FastAPI & Pydantic updates?: Fix Pyodide lockfile (#13654) and Fix Pyodide lockfile.

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