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FastAPI & Pydantic

FastAPI & Pydantic

FastAPI and the Pydantic + SQLModel async-Python stack

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The Wire · Showcase

FASTAPI JUMPS TWO MINOR VERSIONS IN SQLMODEL REFRESH

By RepoJournal · Filed · About FastAPI & Pydantic

FastAPI 0.138.0 arrives in SQLModel's dependency sweep alongside pytest 9.1.1 and a critical SQLAlchemy ORM fix that unblocks subquery loads.

SQLModel just pulled in FastAPI 0.138.0 from 0.136.3 [1], marking the framework's biggest leap in months alongside 8 other package updates that reshape the stack. The real story is SQLAlchemy 2.0.51 [2], which fixes a gnarly ORM bug where subqueryload combined with of_type and and_ predicates was silently breaking relationship chains. pytest 9.1.1 [1] brings test infrastructure improvements that matter if you're running large suites. Ruff 0.15.19 [1] continues its aggressive linting push, now with better performance on complex repos. On the infrastructure side, SQLModel bumped GitHub Actions checkout to v7.0.0 [3], a major version jump that tightens security models around permission scopes. The Pydantic repo is quieter, rolling through routine CI action updates: CodSpeed profiling bumped to 4.18.1 [4], download-artifact to v21 [5], and pnpm setup to 6.0.9 [6], all minor lifecycle housekeeping that keeps workflows sharp.

Action items

References

  1. [1] ⬆ Bump the python-packages group across 1 directory with 8 updates ↗ tiangolo/sqlmodel
  2. [2] ⬆ Bump sqlalchemy from 2.0.50 to 2.0.51 ↗ tiangolo/sqlmodel
  3. [3] ⬆ Bump the github-actions group with 4 updates ↗ tiangolo/sqlmodel
  4. [4] Bump CodSpeedHQ/action from 4.14.0 to 4.18.1 ↗ pydantic/pydantic
  5. [5] Bump dawidd6/action-download-artifact from 19 to 21 ↗ pydantic/pydantic
  6. [6] Bump pnpm/action-setup from 6.0.8 to 6.0.9 ↗ pydantic/pydantic

FAQ

What changed in FastAPI & Pydantic on July 3, 2026?
FastAPI 0.138.0 arrives in SQLModel's dependency sweep alongside pytest 9.1.1 and a critical SQLAlchemy ORM fix that unblocks subquery loads.
What should FastAPI & Pydantic teams do about it?
Pin FastAPI 0.138.0 in your next SQLModel update if you're on async subqueries with polymorphic relationships • Apply SQLAlchemy 2.0.51 patch immediately if you use orm.subqueryload with relationship filters • Update GitHub Actions checkout to v7.0.0 in your CI workflows at next scheduled maintenance
Which FastAPI & Pydantic repositories shipped on July 3, 2026?
tiangolo/sqlmodel, pydantic/pydantic

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