Ethereum to shut down its biggest testnet Holesky after Fusaka fork

Ethereum’s largest testnet, Holešky, will be sunset in the coming weeks after two years of rigorously testing Ethereum’s most important network upgrades.

Ethereum’s largest testnet, Holešky, will sunset as part of a planned shutdown and migration to the Hoodi testnet following several technical issues earlier in the year.

The foundation said Monday that Holešky will be shut down two weeks after the Fusaka upgrade is finalized on the network. The upgrade is proposed for sometime in the second half of September.

“After this, Holešky will no longer be supported by client, testing or infrastructure teams,” it said. While the exact date isn’t clear, Ethereum core developers are looking to launch Fusaka on mainnet in November — so it must happen well before then.

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