Ethereum Holešky Testnet to Sunset Ahead of Fusaka Upgrade

Ethereum’s largest testnet, Holešky, will soon shut down as part of a planned migration to the Hoodi testnet, the Ethereum Foundation announced on Monday. The decision follows a series of technical issues earlier this year and comes just ahead of the Fusaka upgrade, which developers aim to deploy on mainnet in November. Launched in September 2023, Holešky was designed to test staking infrastructure and validator operations. Over the past two years, it played a critical role in preparing the Ethereum network for protocol updates, including the Pectra and Dencun upgrades. The Foundation noted that Holešky had “served its purpose,” enabling thousands of validators to trial new features before they were introduced on mainnet. Ethereum Holešky Nears End-of-Life However, the testnet faced difficulties in early 2025, including large-scale inactivity leaks that created significant exit queues for validators. Although the network eventually recovered, developers decided to transition to Hoodi, a newer testing environment launched in March. Hoodi is already supporting the Pectra update and is expected to handle future protocol upgrades, including Fusaka. The Foundation stated that Holešky will be shut down two weeks after the Fusaka upgrade is finalized on the testnet. While the precise date is not yet clear, the transition must take place well before Fusaka’s scheduled mainnet activation in November. Following its closure, Holešky will no longer receive support from client, testing, or infrastructure teams. Fusaka and Beyond The Fusaka hard fork, short for Fulu-Osaka, is regarded as a major milestone for Ethereum . It is designed to improve how rollups access data by distributing workloads more efficiently across validators. Developers believe this will make running nodes easier, strengthen network decentralization, and improve layer-2 scalability, allowing rollups to process transactions faster and at lower cost. Fusaka is set to introduce 11 Ethereum Improvement Proposals (EIPs) when it activates later this year. Looking further ahead, the community is already preparing for the Glamsterdam upgrade, expected in 2026. Among its most anticipated features is EIP-7782, a proposal to halve block times to six seconds by separating block validation from execution. This would give provers more time to generate zero-knowledge Ethereum Virtual Machine proofs, further advancing the network’s scaling roadmap. Recent momentum in development has coincided with market enthusiasm. Several publicly listed firms have added Ether to their treasuries in recent months, a factor analysts link to ETH’s more than 200% price surge since April. The post Ethereum Holešky Testnet to Sunset Ahead of Fusaka Upgrade appeared first on TheCoinrise.com .