According to a blog post on the Ethereum Foundation’s website, three Ethereum testnets leveraging the London hard fork will go live during the next few weeks. Ethereum core developer Tim Beiko explained last Friday that the “upgrade will first go live on Ropsten, at block 10499401, which is expected to happen around June 24, 2021.”

London Upgrade Begins to Root With Testnet Implementations Slated to Launch

Three Ethereum testnets will see the London upgrade applied in the near future which shows progress is being made toward implementing the new features. Essentially, the London hard fork is the upgrade that follows the Berlin hard fork that took place in April 2021.

The London hard fork will implement a number of significant Ethereum Improvement Proposals (EIP) in order to prepare for the Serenity (ETH 2.0) upgrade slated for 2022. Two EIPs, in particular, aim to enhance the blockchain’s fee model and the ETH mining ecosystem’s…

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Source: https://news.bitcoin.com/three-ethereum-testnets-are-transitioning-to-the-highly-anticipated-london-upgrade/