2 days ago
As previously announced, the Holešky testnet has reached its planned end-of-life day and volition beryllium sunset shortly. The immense bulk of remaining validator nodes volition beryllium unopen down 2 weeks aft the Fusaka upgrade has finalized connected Holešky. After this, Holešky volition nary longer beryllium supported by client, investigating oregon infrastructure teams.
Following the motorboat of the Hoodi testnet successful March 2025, infrastructure providers and staking operators person had the accidental to migrate their investigating operations.
Background
Holešky was launched successful 2023 arsenic Ethereum's largest nationalist testnet, designed specifically for investigating staking infrastructure and validator operations astatine scale. The web served its purpose, enabling thousands of validators to trial protocol upgrades, including the Dencun web upgrade and astir recently, Pectra.
However, pursuing the Pectra testnet activation successful aboriginal 2025, Holešky experienced extended inactivity leaks that resulted successful a ample exit queue. While the web recovered and finalized, the lengthy validator exit process made it impractical for investigating the afloat validator lifecycle wrong tenable timeframes. This led to the instauration and motorboat of Hoodi successful March 2025, providing a caller investigating situation without these constraints.
Migration Path
Staking operators and infrastructure providers should migrate to Hoodi, which was launched specifically to code Holešky's limitations. Hoodi provides a caller validator set, supports each Pectra features and volition activate aboriginal protocol upgrades, including the upcoming Fusaka fork.
Application and tooling developers who were utilizing Holešky should usage Sepolia instead, which remains the recommended testnet for astute declaration and dapp testing.
Current Testnet Landscape
Following Holešky's sunset, Ethereum's testnet ecosystem volition dwell of:
- Sepolia: Application and tooling development
- Hoodi: Validator and staking supplier testing
- Ephemery: Lightweight validator lifecycle investigating with resets each 28 days
Looking Forward
Holešky provided invaluable insights into large-scale validator operations and helped stress-test captious protocol upgrades. These learnings person straight informed some Hoodi's plan and broader protocol investigating practices.
Thank you to everyone who contributed to running, maintaining, and investigating connected Holešky implicit the past years!
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