v0.16.0

0.16.0 (2026-10-13)

⚠ BREAKING CHANGES

• response: Non-string dict keys such as {None: 1} now serialize as {"null": 1} (previously {"None": 1}). Sufficiently deep plain structures can now succeed where they previously produced a formatted 500.
• deps: The supported Pydantic floor is raised from 2.0 to 2.11 because TypeAdapter.dump_python(..., fallback=...) requires it. Consumers pinned below 2.11 must upgrade before installing the next release.

Features

• validation: aggregate request-source errors on opt-in (#535) (6572975)

Bug Fixes

• deps: require pydantic 2.11 for response serialization (c972c84), closes #521
• response: handle cycle and depth errors in direct responses (696a9ff)
• response: serialize nested models by alias in direct responses (70097f2)

Performance

• response: encode plain JSON responses in one pass (cf79aa0), closes #527