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spring-http-interface: introduce springHttpClientAdapter, fix paramDoc.mustache

Enhancement: General

Server: Java

Server: Spring

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 19710

#19710 In OpenAPITools/openapi-generator;

· by ibaranga was closed on Mar 15, 2026

python(pydantic): Use validate_by_name config; populate_by_name will be deprecated

Client: Python

Enhancement: Code CleanupGeneral refactoring, removal of deprecated things, commenting, etc.General refactoring, removal of deprecated things, commenting, etc.

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 22931

#22931 In OpenAPITools/openapi-generator;

· by timonrieger was closed on Feb 25, 2026

fix #22571 (OpenAPINormalizer): Removed reset of OAS content

Feature: OAS 3.1.0 spec support

Issue: Bug

OpenAPI NormalizerNormalize the spec for easier processingNormalize the spec for easier processing

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 22573

#22573 In OpenAPITools/openapi-generator;

· by JPPortier was closed on Feb 23, 2026

[dart] Preserve inner generic type for Map<String, List<T>> deserialization

Client: Dart

Issue: Bug

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 22717

#22717 In OpenAPITools/openapi-generator;

· by EddieRydell was closed on Feb 19, 2026

[OCaml][Fix] Unreferenced enum + Direct recursive types

Client: OCaml

Enhancement: General

Issue: Bug

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 23005

#23005 In OpenAPITools/openapi-generator;

· by sir4ur0n was closed on Feb 23, 2026

fix(kotlin): support oneOf with primitive types in kotlinx_serialization

Client: Kotlin

Enhancement: Feature

Feature: OAS 3.0 spec support

Status: Closed (abandoned).

OpenAPITools/openapi-generatornumber 22986

#22986 In OpenAPITools/openapi-generator;

· by pvcresin was closed on Feb 24, 2026

[Java][WebClient] Propagate OpenAPI Deprecations to Generated ApiClient-methods

Client: Java

Enhancement: General

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 23039

#23039 In OpenAPITools/openapi-generator;

· by Chrimle was closed on Feb 23, 2026

[dart] Fix enum defaults, Object arrays, and nullable required assertions in native serialization

Client: Dart

Feature: Enum

Issue: Bug

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 23027

#23027 In OpenAPITools/openapi-generator;

· by EddieRydell was closed on Feb 23, 2026

openapi-generator-gradle-plugin: upgrade Gradle to v8

Enhancement: Compatibility

OpenAPI Generator Gradle Plugin

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 22864

#22864 In OpenAPITools/openapi-generator;

· by dennisameling was closed on Feb 23, 2026

fix: OAS3.1 deprecated property for array properties

Issue: Bug

OpenAPI NormalizerNormalize the spec for easier processingNormalize the spec for easier processing

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 23019

#23019 In OpenAPITools/openapi-generator;

· by plaflamme was closed on Feb 23, 2026

Type safe error handling in kotlin spring server with useSealedResponseInterfaces flag

Client: Kotlin

Enhancement: Feature

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 23003

#23003 In OpenAPITools/openapi-generator;

· by louislepper was closed on Feb 24, 2026

[PYTHON] switch from mutable bytearray to immutable bytes to avoid pydantic error

Client: Python

Issue: Bug

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 22988

#22988 In OpenAPITools/openapi-generator;

· by jdkent was closed on Feb 23, 2026

feat: Add oneOf for scala-http4s client

Client: Scala

Feature: OAS 3.0 spec support

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 22969

#22969 In OpenAPITools/openapi-generator;

· by bartosz822 was closed on Mar 22, 2026

feat(python): expose all config properties in constructor

Client: Python

Enhancement: General

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 23021

#23021 In OpenAPITools/openapi-generator;

· by timonrieger was closed on Feb 24, 2026

Move C++ virtual destructor definition to .cpp files (#21529)

Enhancement: Code CleanupGeneral refactoring, removal of deprecated things, commenting, etc.General refactoring, removal of deprecated things, commenting, etc.

Server: C++

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 21530

#21530 In OpenAPITools/openapi-generator;

· by pylaterreur was closed on Feb 24, 2026

[java-spring] - add 'includeHttpRequestContext' additional property defaulting to "true" for reactive and "false" for blocking to include ServerWebExchange/HttpServletRequest

Enhancement: Feature

Server: Java

Server: Spring

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 22910

#22910 In OpenAPITools/openapi-generator;

· by Picazsoo was closed on Feb 24, 2026

feat: support date-time-local in scala generators

Client: Scala

Enhancement: General

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 22990

#22990 In OpenAPITools/openapi-generator;

· by plaflamme was closed on Feb 24, 2026

[kotlin-server][JAX-RS] Add useTags to kotlin-server JAXRS code generator

Enhancement: Feature

Server: Kotlin

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 22970

#22970 In OpenAPITools/openapi-generator;

· by feczkob was closed on Mar 22, 2026

fix(python): missing field_validator import for UUID properties with pattern

Client: Python

Issue: Bug

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 22947

#22947 In OpenAPITools/openapi-generator;

· by timonrieger was closed on Feb 24, 2026

[JS] Fix handling of oneOf when you have explicitly used a discriminator

Client: JavaScript/Node.js

Issue: Bug

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 23026

#23026 In OpenAPITools/openapi-generator;

· by tray2100 was closed on Feb 24, 2026

fix(kotlin): support non-discriminator oneOf/anyOf model and array types with kotlinx_serialization

Client: Kotlin

Enhancement: General

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 23007

#23007 In OpenAPITools/openapi-generator;

· by naokiwakata was closed on Feb 24, 2026

Rust-server: implement ValidateComposited traits for complex types and add integer enum support

Enhancement: General

Server: Rust

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 23045

#23045 In OpenAPITools/openapi-generator;

· by dsteeley was closed on Feb 24, 2026

fix: core: preserve OAS 3.1 numeric exclusive validation constraints in composed schemas

Feature: OAS 3.1.0 spec support

Issue: Bug

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 23053

#23053 In OpenAPITools/openapi-generator;

· by raichuchuchu was closed on Feb 25, 2026

Add support for Optional<T> in Dart generator (both dart and dart-dio) to distinguish absent, null, and present states

Client: Dart

Enhancement: General

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 22257

#22257 In OpenAPITools/openapi-generator;

· by eirikb was closed on Feb 26, 2026

[typescript-angular] Include OIDC credential headers

Client: TypeScript

Enhancement: General

Status: Merged (completed).

OpenAPITools/openapi-generatornumber 23065

#23065 In OpenAPITools/openapi-generator;

· by rgroothuijsen was closed on Feb 27, 2026