A question that comes up from time to time in relation to us potentially doing upgrades of software on websites and recently came up in relation to doing an upgrade of OpenCart, is does the data, in this situation product data, need to be migrated or moved into the upgraded version? The answer is no.
It wouldn’t make much sense to do an upgrade if you need to restore all the data, why not just do a new install in that situation? There are some situations where moving to a new version of web software, you need to do just that, but those are referred to as migrations, not upgrades.