builder.Services.AddApiVersioning(opt =>
{
    opt.DefaultApiVersion = new(1, 0);
    opt.AssumeDefaultVersionWhenUnspecified = true;
    opt.ReportApiVersions = true; // api-supported-versions header
    opt.ApiVersionReader = ApiVersionReader.Combine(
        new UrlSegmentApiVersionReader(),
        new HeaderApiVersionReader("X-Api-Version"));
}).AddApiExplorer(opt => opt.GroupNameFormat = "'v'VVV");

// Minimal API
var v1 = app.NewVersionedApi().MapGroup("/api/v{version:apiVersion}");
v1.MapGet("/users", GetUsersV1).HasApiVersion(1.0);
v1.MapGet("/users", GetUsersV2).HasApiVersion(2.0);