The Ethereum Foundation has announced the closure of the Ethereum Holesky testnet following the Pectra upgrade, scheduled for late September 2025. This move is part of a strategic effort to streamline development and optimize resources. The Pectra upgrade, which integrates features from the 'Prague' and 'Electra' phases, aims to improve Ethereum's scalability and security. The Holesky testnet will be decommissioned two weeks after the upgrade, with the mainnet launch expected in November. Developers and staking operators are encouraged to transition to the Hooti testnet to continue their activities.