Today we made a very small change to the way the API returns some results. There is a chance your application may be affected, so please check it, and if things have blown up, look at the way the responses have changed. It's unlikely that your application has been affected. The specific calls that may be affected are API responses that return a single field, and that field is an array or object. These responses may have a slightly different structure now. The change was made to address a long running shortcoming of the way data is returned when it is a single key/value.