Mongodb Update - URGENT


somebody please tell me how to use $set and push in mongodb. we got struck in our development because of this update. We followed below link. But its not working. Its showing this error "the dollar () prefixed field ‘$set’ in ‘$set’ is not valid for storage "

Anybody please help me on this.

MondoDB Operators are not currently supported in the API, however a feature request has been filed for this functionality.
Sorry to bear bad news.

Is there any update on this ‘enhancement’? It makes Mongo significantly less usable without update operators.

Currently no ETA on this request.