Ethereum developers plan to terminate support for the Holesky testnet at the end of September

ChainCatcher news, reported by The Block, states that Ethereum core developers plan to terminate support for the Holesky testnet in September 2025 and are preparing for its role transition and eventual deprecation.

Deprecating testnets is a common practice; Ethereum developers previously discontinued Kiln, Ropsten, and Rinkeby in 2022, and stopped Goerli last year. Holesky was launched in September 2023 and is one of Ethereum's two main testnets, the other being Sepolia. It has been a key public testnet for staking, infrastructure, and protocol development.