# Ethereum to Sunset ‘Holesky’ Testnet in September

*Author: Bankless*
*Published: Mar 19, 2025*
*Source: https://www.bankless.com/de/read/ethereum-to-sunset-holesky-testnet-in-september*

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Ethereum’s largest testnet, Holesky, [will shut down](https://blog.ethereum.org/en/2025/03/18/hoodi-holesky) in September due to validator issues, replaced by the newly launched Hoodi network. 

## **What’s the Scoop?**
- **Testnet Closure**: Ethereum will discontinue its largest test network, Holesky, following challenges with the upcoming Pectra upgrade.
- **New Testnet Replacement**: Hoodi, a newly launched test network, will replace Holesky and facilitate upgrades like Pectra.
- **Validator Issues**: Inactivity leaks in Holesky caused significant congestion, making it unsuitable for validator lifecycle testing.
- **Timeline**: Holesky will begin winding down operations immediately, with full deprecation set for September 30.
[Holesky and Hoodi Testnet Updates | Ethereum Foundation Blog![](https://storage.ghost.io/c/e4/b7/e4b77544-5a37-4f0b-8824-8440aa348476/content/images/icon/favicon-3.png)Ethereum Foundation Blog![](https://storage.ghost.io/c/e4/b7/e4b77544-5a37-4f0b-8824-8440aa348476/content/images/thumbnail/upload_cc1a3eb5cbdab2f05c80f670c7b3f7dd.png)](https://blog.ethereum.org/en/2025/03/18/hoodi-holesky)
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