Since its launch, Ethereum has undergone several upgrades, including the recent London Hard Fork, which introduced a new fee structure and made the network more efficient. The Ethereum development team is also working on the Ethereum 2.0 upgrade, which is expected to further enhance the network's scalability, security, and efficiency.
One of the most significant contributions of Ethereum has been the creation of smart contracts, which are self-executing contracts with the terms of the agreement between buyer and seller being directly written into lines of code. Smart contracts enable the automation of complex business processes, reducing the need for intermediaries and increasing efficiency.