Ethereum’s forthcoming London upgrade, containing the highly-anticipated Ethereum Improvement Proposal (EIP) 1559, has been deployed on the Ropsten testnet.
Following the launch on Ropsten on Thursday, London is now expected to progress through Ethereum’s Goerli, Rinkeby and Kovan testnets at roughly weekly intervals — from which point the Ethereum community expects a date for mainnet deployment to firm up.