In practice, that means greater privacy, because your keys won’t have as much exposure on the chain.
These souped-up signatures are also a game changer for smart contracts, which are self-executing agreements that live on the blockchain.
Currently, smart contracts can be created both on bitcoin’s core protocol layer and on the Lightning Network, a payments platform built on bitcoin, which enables instant transactions.
Although the bitcoin community agreed to lock in the upgrade in June, the rollout itself didn’t happen until November.
“You don’t want different clients or miners in the protocol out of sync.