Who contributed to FastAPI & Pydantic on June 10, 2026?

2 developers shipped this update, including dependabot[bot] and alejsdev.

What were the notable FastAPI & Pydantic updates?

⬆ Bump starlette from 1.1.0 to 1.2.1, ⬆ Bump the python-packages group across 1 directory with 6 updates, and ⬆ Bump python-multipart from 0.0.29 to 0.0.30.

FastAPI & Pydantic

FastAPI and the Pydantic + SQLModel async-Python stack

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FASTAPI CORE DEPENDENCIES ADVANCE, STARLETTE JUMPS TO 1.2.1

By RepoJournal · Filed 06:04 UTC on June 10, 2026 · About FastAPI & Pydantic

2 people shipped this

dependabot[bot] @dependabot[bot] 4 cited

alejsdev @alejsdev 1 cited

FastAPI's dependency stack is moving faster than usual: Starlette climbs two minor versions [ref:5], python-multipart patches a URL parsing fix [ref:4], and six supporting packages ship updates in a single sweep [ref:1].

The headline move is Starlette 1.2.1 [1], which swaps httpx for httpx2 in the testclient module. This matters because httpx2 2.3.0 [2] also ships in the same batch, meaning the upgrade is coordinated and tested together. Python-multipart 0.0.30 [3] tightens URL field separator handling to treat only ampersands as delimiters, a parsing fix that affects form handling. The broader dependency refresh [2] pulls in Ruff 0.15.15, Typer 0.26.6, and inline-snapshot 0.34.0 across the board. This is maintenance day, not a crisis. CI infrastructure also updates [4] with actions/checkout 6.0.3 to keep the build pipeline current.

Action items

→ Pin Starlette 1.2.1 in your next FastAPI upgrade cycle fastapi/fastapi [plan]
→ Verify python-multipart 0.0.30 URL parsing in your form handlers before merge fastapi/fastapi [monitor]
→ Review FastAPI Cloud deployment docs for any breaking changes fastapi/fastapi [monitor]

References

[1] ⬆ Bump starlette from 1.1.0 to 1.2.1 ↗ fastapi/fastapi
[2] ⬆ Bump the python-packages group across 1 directory with 6 updates ↗ fastapi/fastapi
[3] ⬆ Bump python-multipart from 0.0.29 to 0.0.30 ↗ fastapi/fastapi
[4] ⬆ Bump the github-actions group with 3 updates ↗ fastapi/fastapi
[5] 📝 Update FastAPI Cloud deployment instructions ↗ fastapi/fastapi

Quick answers

What shipped in FastAPI & Pydantic on June 10, 2026?: FastAPI's dependency stack is moving faster than usual: Starlette climbs two minor versions [ref:5], python-multipart patches a URL parsing fix [ref:4], and six supporting packages ship updates in a single sweep [ref:1]. In total, 1 commits and 6 pull requests landed.
Who contributed to FastAPI & Pydantic on June 10, 2026?: 2 developers shipped this update, including dependabot[bot] and alejsdev.
What were the notable FastAPI & Pydantic updates?: ⬆ Bump starlette from 1.1.0 to 1.2.1, ⬆ Bump the python-packages group across 1 directory with 6 updates, and ⬆ Bump python-multipart from 0.0.29 to 0.0.30.

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