The Ethereum network will undergo the Gray Glacier upgrade at block 15,050,000, expected on June 29, 2022. Node operators must upgrade their systems before June 27, 2022 to ensure compatibility with the network changes.
The Ethereum network is scheduled to undergo the Arrow Glacier upgrade at block 13,773,000, predicted for December 8, 2021. Node operators must upgrade their clients before December 5, 2021 to ensure compatibility with the network changes.
Ethereum's Berlin upgrade is scheduled for deployment with Ropsten testnet upgrading on March 10th and mainnet on April 15th. Node operators must upgrade to Berlin-compatible versions before the deployment dates to maintain network compatibility.
The article appears to be a brief blog post titled 'Finalized no. 23' mentioning rebranding of a blog and encouraging users to upgrade their nodes. Due to the extremely limited content provided, specific details about the rebranding or node upgrade requirements are unclear.
