Openapi 3 2 Support Preview2

OpenAPI 3.2.0 support (Breaking Change)

Microsoft.AspNetCore.OpenApi now supports OpenAPI 3.2.0 through an updated dependency on Microsoft.OpenApi 3.3.1. This update includes breaking changes from the underlying library. For more information, see the Microsoft.OpenApi upgrade guide.

To generate an OpenAPI 3.2.0 document, specify the version when calling xref:Microsoft.Extensions.DependencyInjection.OpenApiServiceCollectionExtensions.AddOpenApi%2A:

builder.Services.AddOpenApi(options =>
{
    options.OpenApiVersion = Microsoft.OpenApi.OpenApiSpecVersion.OpenApi3_2;
});

Subsequent updates take advantage of new capabilities in the 3.2.0 specification, such as item schema support for streaming events.

Thank you @baywet for this contribution!