Ethereum is set to retire its Holesky testnet two years after its launch, marking the end of its utility for developers. Launched in 2023 to assist with staking and validator operations, Holesky was crucial for testing major updates like the Dencun and Pectra upgrades. However, a series of technical issues emerged in early 2025, with validators going offline and causing problems that made the testnet less effective.
In response, Ethereum introduced a new testnet, Hoodi, in March 2025 to replace Holesky. Hoodi was designed to fix the issues experienced with its predecessor and is fully equipped to support current and future updates, including the upcoming Fusaka fork. While Holesky will be fully decommissioned after the Fusaka upgrade in November, developers working on dApps and smart contracts can continue to use the Sepolia testnet as their primary environment.
This announcement comes as Ethereum’s network shows significant growth. According to Everstake, the number of monthly active addresses reached 19.45 million in August, the highest level since May 2021. This surge in activity includes all types of transactions, from DeFi and NFTs to transfers and staking.
The increase in network activity is backed by strong institutional interest. For example, BitMine’s treasury holdings of ETH increased by 12% to 1.71 million, and BlackRock’s Ethereum ETF saw a single-day inflow of $314 million. The open interest in CME Ethereum futures also hit a record high of over $10 billion, indicating growing investor confidence and use of the altcoin. Analysts believe that this rise in activity and interest is proof of Ethereum’s importance as a core platform for Web3 and decentralized applications.
September 2025, Cryptoniteuae
