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[REQ][typescript-fetch] Improve typing for generated ValidationAttributeMap objects

Enhancement: Feature

Status: Open.

#24620 In OpenAPITools/openapi-generator;

· devtobi opened on Aug 5, 2026

[BUG] [kotlin-server] Does not create type mapping for oneOf

Issue: Bug

Status: Open.

#24606 In OpenAPITools/openapi-generator;

· rupert-jung-mw opened on Aug 4, 2026

[BUG][JAVA][restclient] useJackson3: createDefaultMapper(null) drops the default DateFormat, so date-time fields serialize as epoch numbers

Issue: Bug

Status: Open.

#24588 In OpenAPITools/openapi-generator;

· anatoly-tamarack opened on Aug 3, 2026

[BUG][JAVA][restclient] useJackson3: generated RestClient is missing Spring's default message converters (follow-up to #23354)

Issue: Bug

Status: Open.

#24587 In OpenAPITools/openapi-generator;

· anatoly-tamarack opened on Aug 3, 2026

[BUG][java] OAS 3.1 "type: string" schema with plain-string oneOf branches no longer collapses to String, generates useless wrapper model (regression since 7.21.0)

Issue: Bug

Status: Open.

#24574 In OpenAPITools/openapi-generator;

· phusu opened on Aug 3, 2026

[BUG][typescript] String enum values containing "/*" are corrupted to "/_*"

Issue: Bug

Status: Open.

#24572 In OpenAPITools/openapi-generator;

· dorakemon opened on Aug 3, 2026

[BUG][Spring] Model named Tag collides with @Tag annotation import, generated code does not compile

Status: Open.

#24554 In OpenAPITools/openapi-generator;

· donald opened on Aug 1, 2026

[BUG][typescript-fetch] any-typed multipart form parameter emits unqualified anyToJSON (does not compile)

Status: Open.

#24552 In OpenAPITools/openapi-generator;

· donald opened on Aug 1, 2026

[BUG] allOf member with properties + a validation keyword is silently dropped, losing its properties

Status: Open.

#24550 In OpenAPITools/openapi-generator;

· donald opened on Aug 1, 2026

[BUG] Inline request-body schema silently overwrites a spec-defined schema with a mangled-equal name

Status: Open.

#24548 In OpenAPITools/openapi-generator;

· donald opened on Aug 1, 2026

[BUG] allOf-inherited "any type" additionalProperties map degrades to free-form object

Status: Open.

#24546 In OpenAPITools/openapi-generator;

· donald opened on Aug 1, 2026

[REQ][Go] Allow streaming large response bodies

Status: Open.

#24543 In OpenAPITools/openapi-generator;

· JJtheJJpro opened on Jul 31, 2026