Back in the spring of 2017, the discussion of a technology called ‘ASIC Boost’ was a very hot debate amongst bitcoin proponents. Bitcoin core (BTC) supporters were extremely upset with the firm Bitmain Technologies and its owner Jihan Wu for allegedly using ASIC Boost covertly, even though the company denied it. Now according to reports the mining operation Slush Pool is compatible with ASIC Boost after the controversy was forgotten, and a company called ‘Little Dragon Technology’ made it available for any company as a Blockchain Defensive Patent License (BDPL).
https://news.bitcoin.com/from-attack-to-optimization-slush-pool-reveals-asic-boost-compatibility/