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v1.742.0

// March 5, 2026

feat(csharp,java): add Retry-After header support (#1964)

Generator changes (12)

New features

csharp

Ensure basic HTTP authentication details are always included in API requests when selected out of multiple security options

New features

csharp

support for Retry-After HTTP header

New features

csharp

add Arazzo-based test generation with Accept header and basic auth fixes

New features

javav2

generate Supported Types documentation for union model pages with factory method examples for non-discriminated unions and discriminator-value-to-type mapping tables for discriminated unions

New features

javav2

model docs now show separate Setter Type and Getter Type columns when nullFriendlyParameters is enabled

New features

javav2

support for Retry-After HTTP header

Bug fixes

mcp-typescript

set NODE_OPTIONS --max-old-space-size=6144 for test commands to prevent OOM on large specs

New features

mockserver

add support for optional nullable fields

New features

ruby

add JSONL streaming response support

New features

ruby

add SSE streaming response support

New features

ruby

add SSE sentinel support for streaming responses

Bug fixes

typescriptv2

set NODE_OPTIONS --max-old-space-size=6144 for test commands to prevent OOM on large specs