I think this is a useless thread because it has been asked over and over already.
Also, there is no S10 coming.
correct it would be the s-11 and it will not be released until this screen shot below changes
look at the image note the s-7 is a money maker for every dollar it makes it pays 45 cents and you keep 55 cents
so when that changes to 95 cent and 5 cents bitmain has an incentive to release an s-11
if you look at this from a money angle the s-7 is a huge money maker.
but if you realize no one looks at what is really mining it could be all s-9's and bitmain would be making a shit ton extra.
so they certainly have zero need to kill off this s-7 cash cow.
as I can not believe they use all s-7s some must be s-9's they have no one audit it.
so at op just check on the s-7 at hashnest and wait to see 90% + for your answer.
if most of the s-7 they sell on hashnest is s-9 they make 30 cent extra on every dollar the so called s-7 earns