But aren't they adding new services, too? I thought I read that there were new services being added. That might require a change to the API.

Ajeh? (or any of the other Zen developers) Is anyone looking into this? Remember last year's USPS API fiasco? As I recall Ajeh worked very late into the wee hours to get it working in time, thanks to the USPS changing the way their API actually worked at the last minute. You were fixing bugs and we were testing as fast as you'd send a new fix, into the very early hours. I jumped onto the forums today to see if there was any discussion about it. I hope one of the developers knows more & can let us know if it's an issue or not. Thanks, Debbie