1 September 2025
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Ethereum Foundation Announces Holesky Testnet Shutdown Ahead of Fusaka Upgrade
The Ethereum Foundation announced the shutdown of the Holesky testnet ahead of the "Fusaka" network upgrade. Key points include:
- Holesky launched in September 2023 for safe testing of upgrades on the Ethereum blockchain.
- It facilitated testing for staking infrastructure and validator operations over two years.
- Issues arose during the Pectra upgrade tests, leading to critical downtime and delays in finalization.
- The Hoodi testnet was introduced to address these issues and support further development.
- Developers are directed to migrate from Holesky to Hoodi as of September 1.
- Post-Fusaka upgrade in November, validators on Holesky have two weeks to transition to other testnets like Sepolia, Ephemery, or Hoodi.