The original prototype batch, which was distributed to resellers for testing and publicity photos, were labeled FS7. By production, the S7 had been dropped so all production Compac v8.x are just Compac F. Version changes within the V8.x Compac F line are mostly caused by issues in the semiconductor market requiring design changes as parts become unavailable due to stock shortages. V8.2 saw a change in the LED blink circuit, and V8.3 will see a new main regulator design, which is significant since we designed a pretty kickass power system for the original Compac in 2015 and have been using it ever since. If it ain't broke, don't fix it, until you can't find the parts anymore.
Thanks for the explanation, it makes perfect sense now.
These miners are really great, and I'm happy to hear that you guys are planning to make more of them(v8.3), as I think I read somewhere this was supposed to be a limited batch only.
One thing that I really would like to see alongside the v8.3 release if possible is another batch of the GekkoScience USB hubs since they are really hard to find, and they are pretty much the only one that can go past 2.4A per miner, which is the current bottleneck many people are having today with these miners.
