Issues

• [BUG][JAVA][jaxrs-spec] OAS 3.1: additionalProperties: false with inline object property generates non-compiling accessors

  OpenAPITools/openapi-generator#25430 · Filter by author kurellajunior opened on Oct 26, 2026

• [BUG][Java][webclient] Narrowed discriminator enums in allOf subclasses generate incompatible getter return types

  Issue: Bug
  OpenAPITools/openapi-generator#25429 · Filter by author 0-mar opened on Oct 26, 2026

• [REQ][csharp][restsharp] Option to construct RestClient with useClientFactory: true

  Enhancement: Feature
  OpenAPITools/openapi-generator#25425 · Filter by author MrD4rkne opened on Oct 26, 2026

• [BUG][normalizer] Typeless OAS 3.0 schemas in referenced files are coerced to type: object

  Issue: Bug
  OpenAPITools/openapi-generator#25412 · Filter by author josephaxisa opened on Oct 25, 2026

• [BUG][python] Regex patterns starting with forward slash (e.g. URL paths) are truncated or fail codegen

  Issue: Bug
  OpenAPITools/openapi-generator#25411 · Filter by author josephaxisa opened on Oct 25, 2026

• [REQ] Improve the Generators List page with responsive columns to reduce scrolling

  Enhancement: Feature
  OpenAPITools/openapi-generator#25409 · Filter by author Bernardoow opened on Oct 25, 2026

• [Python] Remove nose support from server generators

  Enhancement: Feature
  OpenAPITools/openapi-generator#25401 · Filter by author Bernardoow opened on Oct 25, 2026

• [BUG] [JAVA] discriminator with inline enum: missing generated enum

  Issue: Bug
  OpenAPITools/openapi-generator#25398 · Filter by author jpfinne opened on Oct 25, 2026

• [REQ] [PYTHON] Update supported Python versions and dependencies for Connexion 2 and 3

  Enhancement: Feature
  OpenAPITools/openapi-generator#25375 · Filter by author Bernardoow opened on Oct 23, 2026

• [REQ][JAVA][resteasy] Support for Jackson 3 / useJackson3

  Enhancement: Feature
  OpenAPITools/openapi-generator#25364 · Filter by author blaghed opened on Oct 22, 2026

• [REQ][jaxrs-spec] Support for Jackson 3 / useJackson3

  Enhancement: Feature
  OpenAPITools/openapi-generator#25363 · Filter by author blaghed opened on Oct 22, 2026
  3

• [BUG] CVE-2026-110879

  Issue: Bug
  OpenAPITools/openapi-generator#25358 · Filter by author maarre opened on Oct 22, 2026
  1

• [BUG][PHP][PHP-NEXTGEN] allOf-wrapped array items and parameters lose the model namespace

  OpenAPITools/openapi-generator#25354 · Filter by author yarwoob opened on Oct 21, 2026

• [BUG][KOTLIN-SPRING] @field:Valid on container properties triggers HV000271/HV000272 warnings (Hibernate Validator 9.1)

  Issue: Bug
  OpenAPITools/openapi-generator#25347 · Filter by author vklidu opened on Oct 21, 2026

• [Python] Add native lazy import support for Python 3.15

  Enhancement: Feature
  OpenAPITools/openapi-generator#25318 · Filter by author Bernardoow opened on Oct 19, 2026

• [REQ][dart-dio] Support useOptional / patchOnly with serializationLibrary=freezed

  Enhancement: Feature
  OpenAPITools/openapi-generator#25310 · Filter by author ArunChapagain opened on Oct 19, 2026
  2

• [BUG][RUST] chrono date-time path/query/header params are not serialized as RFC 3339

  OpenAPITools/openapi-generator#25297 · Filter by author teovillanueva opened on Oct 17, 2026

• [BUG][rust-axum] Recursive models generate infinitely sized types (E0072)

  OpenAPITools/openapi-generator#25295 · Filter by author teovillanueva opened on Oct 17, 2026

• [BUG][rust-axum] Range response codes (4XX, 5XX) generate code that does not compile

  OpenAPITools/openapi-generator#25293 · Filter by author teovillanueva opened on Oct 17, 2026

• [BUG][RUST] enumUnknownDefaultCase does not make unknown enum values deserialize

  OpenAPITools/openapi-generator#25291 · Filter by author teovillanueva opened on Oct 17, 2026

• [BUG][core] SIMPLIFY_ANYOF_STRING_AND_ENUM_STRING has no effect on OpenAPI 3.1 specs

  OpenAPITools/openapi-generator#25289 · Filter by author teovillanueva opened on Oct 17, 2026

• [BUG][openapi-normalizer] SIMPLIFY_BOOLEAN_ENUM has no effect on OpenAPI 3.1 specs

  OpenAPITools/openapi-generator#25287 · Filter by author teovillanueva opened on Oct 17, 2026

• [BUG][RUST] reqwest client picks the wrong error/success variant when several responses share a schema

  OpenAPITools/openapi-generator#25285 · Filter by author teovillanueva opened on Oct 17, 2026

• [BUG][rust-axum] default responses are sent with status 0: handler panics or returns 500

  OpenAPITools/openapi-generator#25283 · Filter by author teovillanueva opened on Oct 17, 2026

• > <!-- See [CONTRIBUTING.md](../CONTRIBUTING.md#proposing-a-design) for more information.-->

  OpenAPITools/openapi-generator#25278 · Filter by author rafaelmejiaaguilar691-sudo opened on Oct 16, 2026