v2.28.0 2025-01-30

What's Changed

• minimal upgrade to PyO3 0.23 (ignoring deprecations) by @davidhewitt in #1556
• Bump serde_json from 1.0.132 to 1.0.133 by @dependabot in #1564
• Bump idna from 1.0.2 to 1.0.3 by @dependabot in #1567
• Bump serde from 1.0.214 to 1.0.215 by @dependabot in #1565
• remove python3-dll-a dependency by @davidhewitt in #1568
• Use UserWarning from pyo3 by @changhc in #1559
• bump jiter to 0.8.2, PyO3 to 0.23.3 by @davidhewitt in #1570
• Fix typo in PydanticUseDefault docstring by @Viicos in #1571
• Forward default_value calls to the underlying schema for DefinitionRefValidator by @Viicos in #1573
• fix type hint for SerializationInfo.round_trip by @davidhewitt in #1576
• Include JSON Schema input core schema in function schemas by @Viicos in #1572
• fix wasteful to_python() calls checking for undefined by @davidhewitt in #1580
• Fix ValueError on year zero by @davidhewitt in #1583
• Bump serde from 1.0.215 to 1.0.216 by @dependabot in #1586
• optimize refcounting op in datetime creation by @davidhewitt in #1590
• Bump astral-sh/setup-uv from 4 to 5 by @dependabot in #1596
• Bump serde from 1.0.216 to 1.0.217 by @dependabot in #1595
• Bump serde_json from 1.0.133 to 1.0.134 by @dependabot in #1594
• Drop 3.8 support by @sydney-runkle in #1604
• Remove pyupgrade as an explicit linting dependency by @sydney-runkle in #1606
• Fix: dataclass InitVars shouldn't be required on serialization by @sydney-runkle in #1602
• Bump version to v2.28.0 by @Viicos in #1615

Full Changelog: v2.27.1...v2.28.0