koxudaxi/datamodel-code-generator 0.59.0

on GitHub

Breaking Changes

Code Generation Changes

• Pattern key constraints now include propertyNames constraints - When a JSON Schema uses both patternProperties and propertyNames, the generated dict key type now merges constraints from both. Previously, propertyNames constraints such as minLength, maxLength, and $ref could be ignored when patternProperties was present. Regenerated code may produce stricter key types and reject data that was previously accepted by less-strict generated models. (#3192)
• Typed additionalProperties now generates a typed __pydantic_extra__ field for Pydantic v2 models - When a JSON Schema defines schema-valued additionalProperties, generated Pydantic v2 models now include __pydantic_extra__: dict[str, <type>]. Previously, these models only allowed extra fields without typing their values. This changes generated output and makes Pydantic validate extra field values at runtime. (#3205)
• Dataclass field ordering with --use-annotated may change - Dataclass field assignment detection now accounts for constraints moved into Annotated[...]. Generated dataclass fields may be reordered so fields without defaults come before fields with defaults. (#3203)

Default Behavior Changes

• Auto-detection (--input-file-type auto) now recognizes AsyncAPI, Avro, and Protocol Buffers inputs - Inputs that previously fell back to JSON/YAML handling or failed detection may now be detected as one of these formats. (#3194, #3195, #3198)

Compatibility Notes

• The temporary Pydantic minimum-version change from pydantic>=2,<3 to pydantic>=2.6,<3 was reverted before this release. The final dependency range for Python < 3.14 remains pydantic>=2,<3. (#3210, #3215)

What's Changed

• Update CHANGELOG for 0.58.0 by @dcg-generated-docs[bot] in #3187
• Add deprecation registry and docs by @koxudaxi in #3188
• Add XML Schema parser by @koxudaxi in #3183
• Fix null-only type arrays by @koxudaxi in #3189
• Fix contains default minContains by @koxudaxi in #3190
• Sync generated docs by @dcg-generated-docs[bot] in #3193
• Fix fixed prefixItems tuples by @koxudaxi in #3191
• Fix pattern key constraints by @koxudaxi in #3192
• Fix propertyNames ref constraints by @koxudaxi in #3197
• Add Apache Avro schema input type by @koxudaxi in #3195
• Refactor JSON Schema parser helpers by @koxudaxi in #3199
• Document Avro input support by @koxudaxi in #3200
• Use expected files for schema e2e tests by @koxudaxi in #3201
• Add Protocol Buffers input support by @koxudaxi in #3198
• Add AsyncAPI input file type by @koxudaxi in #3194
• Sync generated docs by @dcg-generated-docs[bot] in #3204
• Fix dataclass field ordering by @koxudaxi in #3203
• Add generated header marker option by @koxudaxi in #3208
• Fix path-absolute local refs by @koxudaxi in #3207
• Fix typed additionalProperties extras by @koxudaxi in #3205
• Require Pydantic 2.6 by @koxudaxi in #3210
• Add experimental feature list by @koxudaxi in #3211
• Fix scoped type-overrides changing more fields then intended by @supervirus in #3213
• Copy mapped data types by @koxudaxi in #3214
• Support Pydantic 2.5 by @koxudaxi in #3215

New Contributors

• @supervirus made their first contribution in #3213

Full Changelog: 0.58.0...0.59.0