Ethereum’s forthcoming London upgrade, containing the highly-anticipated Ethereum Improvement Proposal (EIP) 1559, has been deployed on the Ropsten testnet.
Following the June 24 launch on Ropsten, 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.