RepoJournal
FastAPI & Pydantic FastAPI & Pydantic
140 wires and counting

$ follow FastAPI & Pydantic

Keep up with FastAPI & Pydantic in about 3 minutes: what actually shipped โ€” the commits, pull requests, releases, and security advisories that matter.

or

fair warning: these emails are deeply technical. diffs, version numbers, CVEs, benchmark deltas. if that's not your idea of a good read, this isn't your newsletter.

Folds into your digest โ€” weekly by default, monthly if you prefer. Unsubscribe in one click.

$ status

wire 2026-09-23
stories 8

ยฉ 2026 RepoJournal Home Showcase How it works Privacy

$ the-wire ยท showcase

SQLModel 0.0.46 ships timedelta fix for UTC datetimes

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

SQLModel cut 0.0.46 with a fix for timedelta arithmetic against timezone-aware datetime fields, while Pydantic hardened ByteSize validation against integer overflow.

๐Ÿ”– Release version 0.0.46 (#2102) tiangolo/sqlmodel

by pr-submit[bot]

Release 0.0.46 packages the timedelta arithmetic fix, so models that add or subtract durations from aware datetime columns no longer compute against the wrong offset. Bump sqlmodel to pick it up.

Catch `OverflowError` during `ByteSize` validation (#13850) pydantic/pydantic

by Victorien

Pydantic now catches OverflowError raised during ByteSize validation, so an out-of-range byte string fails as a normal validation error instead of escaping as an uncaught exception. This lands on the Pydantic side; SQLModel's release is the version that carries the datetime work.

๐Ÿ› Fix timedelta arithmetic with UTC datetime fields tiangolo/sqlmodel

by tiangolo

The underlying change fixes timedelta arithmetic with UTC datetime fields, where adding or subtracting a delta produced incorrect results for timezone-aware values. Reviewed manually, with the PR noting it was written with Codex using gpt-6-astra.

Catch `OverflowError` during `ByteSize` validation pydantic/pydantic

by Viicos

The same ByteSize overflow guard, tracked as a Pydantic pull request against the validation path.

Quick answers

What shipped in FastAPI & Pydantic on September 23, 2026?
SQLModel cut 0.0.46 with a fix for timedelta arithmetic against timezone-aware datetime fields, while Pydantic hardened ByteSize validation against integer overflow. In total, 4 commits, 3 pull requests, and 1 releases landed.
Who contributed to FastAPI & Pydantic on September 23, 2026?
3 developers shipped this update, including tiangolo, pr-submit[bot], and Viicos.
What were the notable FastAPI & Pydantic updates?
๐Ÿ”– Release version 0.0.46 (#2102), Catch `OverflowError` during `ByteSize` validation (#13850), and ๐Ÿ› Fix timedelta arithmetic with UTC datetime fields.