I have neither seen nor heard of any Tarsacci updates. To be honest, I quit looking for them as they became scarce a few years after they were released. With that said, I decided to hunt a beach recently, and I will tell you, it is still the quietest (single or multi-frequency) detector I have ever used. Black sand does NOTHING to this thing! It is deep too! While I didn't find anything of significance. I found a handful of items that were at least a foot deep! Hunting in all metal gives me the best results, but I'm getting to an age where I just don't want to dig everything, so I switch to discrimination mode. I might lose some depth, but the hunt is more enjoyable...good luck on your search!