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[scala-sttp4] Omit optional fields set to None instead of serializing null (circe)

Client: Scala

Issue: Bug

Status: Open (in progress).

OpenAPITools/openapi-generatornumber 24362

#24362 In OpenAPITools/openapi-generator;

· vivekmahajan opened on Jul 20, 2026

Fix Dart native nullable number deserialization (#20238)

Client: Dart

Issue: Bug

Status: Open (in progress).

OpenAPITools/openapi-generatornumber 24386

#24386 In OpenAPITools/openapi-generator;

· edwinnyawoli opened on Jul 22, 2026

fix(java): place bean-validation @Valid on the type argument instead of the container (HV000271)

Issue: Bug

Server: Java

Server: Spring

Status: Open (in progress).

OpenAPITools/openapi-generatornumber 24176

#24176 In OpenAPITools/openapi-generator;

· twonky4 opened on Jul 1, 2026

Fix numeric enum deserialization

Client: C-Sharp

Feature: Enum

Issue: Bug

Status: Open (in progress).

OpenAPITools/openapi-generatornumber 24394

#24394 In OpenAPITools/openapi-generator;

· sakshichitnis27 opened on Jul 23, 2026