The 2 significant improvements would be the introduction on the Merkelized Summary Syntax Tree (MAST) and Schnorr Signature. MAST introduces a affliction letting the sender and receiver of the transaction to log out on its settlement jointly. Schnorr Signature will allow users to mixture several signatures into a person https://financefeeds.com/ethereum-eth-faces-downward-pressure-but-experts-recommend-securing-mutm-now-for-future-gains/