I was recently forced to upgrade my 2 Zen Cart sites from 1.3.8 (I think) to 1.5.1 due to a php upgrade by my hosting service. I dreaded the idea of doing the upgrade since I'd dragged my feet on upgrading for so long. Although I hit a couple of snags which were entirely my fault, the process was amazingly smooth. Both sites are up and running again and I'm poking around the new admin. I do like the additions to "Who's Online". Very nice!
Kudos to the developers.
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