If X-Cart is planning on releasing a version 3.3.8, I think it may be a while before we see a 3.4.x stable release.
The bug lists are still substantial and serious with each new release of 3.4.x.
I also want to upgrade and have put off implementing a bunch of hacks, waiting for the current version to "firm" up.
The last thing I want to do is have to upgrade from 3.4.3 to 3.4.4 to 3.4.5 to 3.4.x before going live. I think it is best to mod a relatively bug free version and then launch when testing is ok. Having to upgrade while you are building totally sucks if you are a shop owner like me and not a professional developer. There is simply no time for that jazz.
