Written by Wuille, Nick and Towns, BIP 341 proposed a new Segregated Witness (SegWit) version 1 output type, with spending rules based on Taproot, Schnorr signatures, and Merkle branches (part of the cryptographic scheme that generates the hashes that encode data on the blockchain.) SegWit, the previous major Bitcoin upgrade, essentially allowed for larger blocks of transactions every 10 minutes or so by paring down the amount of data required per transaction signature.
