@Duce
I don't think there is any easy way. Updates can be downloaded but are based on the original CD. I don't like it either. CED is pretty good but the high cost and the hassle for me to upgrade my 4.x version has kept me from doing it. I think AmigaOS 4.x users like you have more reason to get the 5.x version. The author, Olaf Barthel (Olsen), is a cool guy and has been posting on many of the Amiga forums lately. GoldED is a pretty good alternative for programming. I believe there is an old version on Aminet and a newer version in the Cubic IDE. I don't know how well it works under AmigaOS 4.x.