The osCommerce upgrade is a hard and a time consuming task. Usually it requires manual files modifications.

The latest osCommerce versions include specific upgrade instructions in the “upgrade_guide.pdf” file for the installation package. Unfortunately the procedure varies depending on the current¬† version of osCommerce you are running and different steps have to be accomplished.

We strongly recommend to create a backup of your website before you initiate the upgrade procedure. Detailed instructions on how to backup your osCommerce web site can be found here.