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wire 2026-10-18
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FastAPI 0.143.4 ships with httpx2 added to optional dependencies

By RepoJournal · Filed · About FastAPI & Pydantic · Composed from the cited sources · methodology

Sebastián Ramírez pr-submit[bot] latest-changes[bot]
3 people shipped this
Sebastián Ramírez @tiangolo 2 cited pr-submit[bot] @pr-submit[bot] 1 cited latest-changes[bot] @latest-changes[bot] 1 cited

A quiet day on the FastAPI desk: a bot-tagged release, a dependency entry for httpx2 in the optional test extras, and the release notes that follow it.

🔖 Release version 0.143.4 (#16513) fastapi/fastapi

by pr-submit[bot]

Version 0.143.4 landed, cut by the pr-submit bot as the release commit for the httpx2 extras change. This is the version to pin if you want the new optional dependency present.

⬆️ Add httpx2 to optional dependencies fastapi/fastapi

by tiangolo

tiangolo's change adds httpx2 to FastAPI's optional dependencies, so installing the test extras now pulls httpx2 rather than leaving it out. Nothing in the framework's runtime dependency set moves; the effect is confined to whichever extra carries it.

⬆️ Add httpx2 to optional dependencies (#16512) fastapi/fastapi

by Sebastián Ramírez

The commit behind that change carries the maintainer's own note on how it was produced: "Made with the help of AI, using Codex with `gpt-6-astra`, manually reviewed." Worth reading alongside the diff, since it is a one-line dependency addition rather than framework logic.

📝 Update release notes fastapi/fastapi

by latest-changes[bot]

The release notes were regenerated by latest-changes after the tag, with CI skipped as usual.

$ ls fastapi/reviews/ # the step-back reads

the week in review Pydantic drops Python 3.10, then layers serialization fast paths the month in review Five Pydantic validation bypasses and a quadratic URL check
Full archive → Weekly reviews →

Quick answers

What shipped in FastAPI & Pydantic on October 18, 2026?
A quiet day on the FastAPI desk: a bot-tagged release, a dependency entry for httpx2 in the optional test extras, and the release notes that follow it. In total, 3 commits and 2 pull requests landed.
Who contributed to FastAPI & Pydantic on October 18, 2026?
3 developers shipped this update, including Sebastián Ramírez, pr-submit[bot], and latest-changes[bot].
What were the notable FastAPI & Pydantic updates?
🔖 Release version 0.143.4 (#16513), ⬆️ Add httpx2 to optional dependencies, and ⬆️ Add httpx2 to optional dependencies (#16512).
♥

$ log FastAPI & Pydantic --recent

Pydantic fixes GC tracking in pydantic-core and caches UTC TzInfo 50 shipped Pydantic drops Python 3.10, accepts list and DecimalTuple for Decimal 37 shipped Pydantic reworks `TypeAdapter` call arguments, tightens `Decimal` schemas 13 shipped FastAPI bumps pillow and dnspython, Pydantic corrects arguments JSON Schema 6 shipped

$ log --all # elsewhere on the wire

Agent Security Quiet day in agent security as guard coverage reaches four clients Alignment & Post-training verl defaults Ascend RL mode, open-instruct unblocks SFT packing

$ ls showcases/

Safety Evals AI Red Teaming Agent Security Interpretability Alignment & Post-training

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