Hi,

Sometimes I had several issues with some features that it worked properly with previous versions of jquery. For example, in one of the sites I designed: http://www.el-mejor.com/ I had a beautiful jquery effects in the slider and another in the boxes.

The problem is when I update jQuery version some features not work properly with the new version and others features works just with this new version.

The question: 

Is possible to make a jquery compatible with all previous versions? I think that the developers are doing a great jobs, but I also think they try to pay more attention to develop a jquery “retro-compatible”

What do you think guys? Probably is easy to talk and very hard to do… lol

PD: I'm sorry about my English :(