Leading Ethereum developer Tim Beiko has proposed to schedule the mainnet activation of the London hard fork for Aug. 4:
If we can roughly hit that timeline, then August 4th should provide enough time to advertise the client releases that are mainnet compatible, and allow infrastructure providers & node operators to upgrade.
The final date will be announced at a meeting of Ethereum core developers on July 9.
As reported by U.Today, the much-anticipated upgrade was deployed on the Ropsten testnet on June 24.
The hard fork contains five Ethereum Improvement Proposal (EIPs), including the controversial EIP-1559 proposal, which will introduce a deflationary fee-burning mechanism.
Ether has been rallying hard in anticipation of the London hard fork, gaining roughly 20 percent against Bitcoin over the past 10 days.

Dan Burgin
Vladislav Sopov
U.Today Editorial Team