Bump datamodel-code-generator from 0.71.0 to 0.82.0

[dependabot]

Bumps datamodel-code-generator from 0.71.0 to 0.82.0.

Release notes

Sourced from datamodel-code-generator's releases.

0.82.0

Breaking Changes

Code Generation Changes

• Constraints are now emitted on recursive container fields - Previously any field that was a self reference had all of its constraints suppressed. The new _can_apply_constraints property in the base field model only suppresses constraints for direct self references, so a self referencing field whose type is a container such as list, Sequence, dict, Mapping, set, frozenset, or tuple now keeps its size constraints. Pydantic output gains Field(min_length=..., max_length=...) and msgspec output gains Meta(min_length=..., max_length=...) where the generated code previously had a bare default, for example friends: list[Pet] | None = None becomes friends: list[Pet] | None = Field(None, min_length=1) (#4071)
• Stricter runtime validation of recursive container payloads - Because the recovered size constraints are now present in the generated models, input data that violates minItems or maxItems on a recursive array is rejected at validation time instead of being accepted. Existing code that relied on the previously unconstrained generated models may start raising pydantic ValidationError or msgspec.ValidationError for payloads that used to pass (#4071)

What's Changed

• Fix builtin formatter wrapping of boolean expressions by @​koxudaxi in datamodel-code-generator/datamodel-code-generator#4073
• Fix collapse-root-models dropping array constraints on self-referencing unions by @​ysheikh2 in datamodel-code-generator/datamodel-code-generator#4071
• Generate validators for not-required groups and presence-only if conditions by @​ysheikh2 in datamodel-code-generator/datamodel-code-generator#4072
• Fix bare Mapping import dropped when schema validators alias it by @​ysheikh2 in datamodel-code-generator/datamodel-code-generator#4076
• Allow manual replay of failed release draft analysis by @​koxudaxi in datamodel-code-generator/datamodel-code-generator#4079

New Contributors

• @​ysheikh2 made their first contribution in datamodel-code-generator/datamodel-code-generator#4071

Full Changelog: datamodel-code-generator/datamodel-code-generator@0.81.0...0.82.0

0.81.0

Breaking Changes

Code Generation Changes

• Undeclared required keys now retained in variant runtime validation - When combining --read-only-write-only-model-type request/response variants with --schema-validator-type runtime validators, generated models now keep runtime validation rules for required keys that are not declared as properties (for example keys required via additionalProperties or if/then/else), whereas these rules were previously dropped from the variant models. Regenerated Request and Response models therefore enforce stricter validation and may reject payloads that the previously generated validators accepted (#4055)

... (truncated)

Changelog

Sourced from datamodel-code-generator's changelog.

0.82.0 - 2026-09-16

Breaking Changes

Code Generation Changes

• Constraints are now emitted on recursive container fields - Previously any field that was a self reference had all of its constraints suppressed. The new _can_apply_constraints property in the base field model only suppresses constraints for direct self references, so a self referencing field whose type is a container such as list, Sequence, dict, Mapping, set, frozenset, or tuple now keeps its size constraints. Pydantic output gains Field(min_length=..., max_length=...) and msgspec output gains Meta(min_length=..., max_length=...) where the generated code previously had a bare default, for example friends: list[Pet] | None = None becomes friends: list[Pet] | None = Field(None, min_length=1) (#4071)
• Stricter runtime validation of recursive container payloads - Because the recovered size constraints are now present in the generated models, input data that violates minItems or maxItems on a recursive array is rejected at validation time instead of being accepted. Existing code that relied on the previously unconstrained generated models may start raising pydantic ValidationError or msgspec.ValidationError for payloads that used to pass (#4071)

What's Changed

• Fix builtin formatter wrapping of boolean expressions by @​koxudaxi in datamodel-code-generator/datamodel-code-generator#4073
• Fix collapse-root-models dropping array constraints on self-referencing unions by @​ysheikh2 in datamodel-code-generator/datamodel-code-generator#4071
• Generate validators for not-required groups and presence-only if conditions by @​ysheikh2 in datamodel-code-generator/datamodel-code-generator#4072
• Fix bare Mapping import dropped when schema validators alias it by @​ysheikh2 in datamodel-code-generator/datamodel-code-generator#4076
• Allow manual replay of failed release draft analysis by @​koxudaxi in datamodel-code-generator/datamodel-code-generator#4079

New Contributors

• @​ysheikh2 made their first contribution in datamodel-code-generator/datamodel-code-generator#4071

Full Changelog: datamodel-code-generator/datamodel-code-generator@0.81.0...0.82.0

---

0.81.0 - 2026-09-14

Breaking Changes

Code Generation Changes

• Undeclared required keys now retained in variant runtime validation - When combining --read-only-write-only-model-type request/response variants with --schema-validator-type runtime validators, generated models now keep runtime validation rules for required keys that are not declared as properties (for example keys required via additionalProperties or if/then/else), whereas these rules were previously dropped from the variant models. Regenerated Request and Response models therefore enforce stricter validation and may reject payloads that the previously generated validators accepted (#4055)

What's Changed

... (truncated)

Commits

• 77f28e5 docs: update release benchmark data (#4077)
• 5eb4d73 Allow manual replay of failed release draft analysis (#4079)
• 7748b3d Fix release draft inline code validation and use Opus 5 (#4078)
• 4840cb3 Fix bare Mapping import dropped when schema validators alias it (#4076)
• d1fcb45 Generate validators for not-required groups and presence-only if conditions (...
• 0861ccc Fix collapse-root-models dropping array constraints on self-referencing union...
• 339d80e Fix builtin formatter wrapping of boolean expressions (#4073)
• 3452dfb docs: update release benchmark data (#4066)
• b3fabab docs: update release benchmark data (#4065)
• 161b483 docs: update CHANGELOG.md for 0.81.0 (#4064)
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