A few SDN-detailed swimming pools however have an “operator” authorization. Of those, two belong to quite previous, now-unused variations of Tornado Cash. The remaining pools possibly have newer, immutable variations, or have been applied so very little which they were being possible overlooked during the May possibly 2020 final update. https://hr682.com/tornado-cash-explained-how-it-ensures-unmatched-confidentiality-on-ethereum-and-bnb/