Hello Sir; as @tundebabzy pointed, please upgrade, backup your vm image I also suggest, this way you have a quick image to restore if your update fails or breaks. Export an appliance. or make a copy of the raw vmdk file on the same server so its just minutes to restore if your update fails. Here’s a link for updates:
SYSTEM:
Also, for your server, I found from experience that it’s not about the number of cores but the processor speed, the core i7 is the best, if you have the money get the turbo boost, Quad, maybe used from ebay, around $400 to $600. We also ran an 8 core Dell r610, 2.5GHz (8 cores given to vm) and a HP elitebook, core i7, 2.9GHz (only 2 cores given to vm) was way faster. Also throw in an SSD hard drive; that’s a MAJOR boost…
Overall the upgrade gave a boost to POS and their are fine features too. Go for it, when you do, stick to the online POS and follow the forums to see if we make headway with any patches.
Good luck!