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What is the Merge
The Merge represents the joining of the existing execution layer of Ethereum (the Mainnet we use today) with its new proof-of-stake consensus layer, the Beacon Chain. It eliminates the need for energy-intensive mining and instead secures the network using staked ETH. A truly exciting step in realizing the Ethereum vision – more scalability, security, and sustainability.
It's important to remember that initially, the Beacon Chain shipped separately from Mainnet. Ethereum Mainnet - with all it's accounts, balances, smart contracts, and blockchain state - continues to be secured by proof-of-work, even while the Beacon Chain runs in parallel using proof-of-stake. The approaching Merge is when these two systems finally come together, and proof-of-work is replaced permanently by proof-of-stake.
What date is The Merge?
The Merge is expected to land within Q3/Q4 2022. The client developers are currently working to a soft deadline of 19th September 2022.
