Originally Posted by xplorer

I recommend you to create your online store with X-Cart 4.2 (that has more useful features than 4.1.x has) unless you need a third-party add-on unavailable for 4.2. Although it has a few bugs, patches are already available and will be provided to you by our support staff upon your request.

There are X-Cart users not recommending 4.2 for live stores because they remember how many bugs had been found in 4.0.0 and 4.1.0 version. It is not the case for 4.2 and the list of known 4.2 bugs is very limited when compared to 4.0.0 and 4.1.0 versions.

X-Cart 4.2.0 has almost the same code base the most recent 4.1.x version has; the changes to the core functionality are minimal (4.0.0 has a new core when compared with 3.5.x, the same for 4.0.x->4.1.0). You can even say that 4.2.0 is 4.1.x with several new features and a css-based skin. The main reason why it is 4.2.0 and not 4.1.12 is our decision to not mix new features and bug-fixes in minor releases. All future 4.1.x versions will include bug-fixes only that will make applying of the patches much easier for you.

Originally Posted by enrique

You said patches are officially available from QT?

Originally Posted by xplorer

Yes, our support staff will provide you with available bug-fix patches on known 4.2 bugs upon your request in the private members area at https://secure.qualiteam.biz.

Originally Posted by koz

Is there a reason why bug fixes are not published and must be individually requested?

Originally Posted by jaybird127

My guess would be that these patches could inadvertently break 3rd-party plugins/mods, and unless are experiencing a specific issue, you might not even need any patches.