informix upward compatibility

I've just taken on a client who has a 4GL runtime license version 1.10 I'd like to upgrade them to 4.0 if his existing code will run in the 4.0 environment. Does anyone have any knowledge of the upgradability of the 1.10 code? I'd like to avoid re-compiling everything if at all possible.... Your thoughts and comments are solicited and appreciated. ---dave--- +-----------------------------------------------------------------+ |J. David Schronce "Death Before Decaf!!" david@cssnet.UUCP| |Computer Support Services 919/775-2145| |-----------------------------------------------------------------| | "The opinions and the company are both mine..." | +-----------------------------------------------------------------+