Latest Service Stack breaks how DateTimes are deserialized?

BTW one solution if you want to ensure UTC DateTime’s are serialized in a ISO 8601 format is to take over serialization of DateTime with:

JsConfig<DateTime>.SerializeFn = date => 
    date.ToUniversalTime().ToString("o", CultureInfo.InvariantCulture);
JsConfig<DateTime?>.SerializeFn = date => 
    date.Value.ToUniversalTime().ToString("o", CultureInfo.InvariantCulture);