The long-planned upgrade to Ethereum aims to improve the network’s scalability and security by switching to a proof of stake consensus mechanism.
Source: https://decrypt.co/videos/explainers/GbT7MLDK/decrypt-learn-what-is-ethereum-20-ethereums-consensus-layer-and-merge-explained
Decrypt Learn: What Is Ethereum 2.0? Ethereum's Consensus Layer and Merge Explained
