The new Zcash Sapling update is here and it is being touted as the next major protocol upgrade. It will bring a slew of improvements to the performance, security and usability of Zcash’s shielded transactions. In this update, BLS12-381 curve is being implemented which will be an upgrade to the Zcash’s elliptic curve. This curve targets 128-bit security using more conservative recommendations suggested by several recent papers.