Ethereum’s Holešky testnet launch hits a speed bump

Holešky will be able to handle a client size three times larger than that of Ethereum mainnet


Nenad Novaković/Unsplash modified by Blockworks


Ethereum’s Goerli testnet will soon come to an end following the launch of a new testnet, dubbed Holešky. 

Testnets are essentially copies of blockchains and exist for developers to test their protocols and smart contracts before deploying them onto the main blockchain. 

Today, there are two main Ethereum testnets: Sepolia, a network designed for blockchain application development, and Goerli, used to test for validating and staking. 

Holešky was meant to launch on Sept.15, marking the one-year anniversary of the Ethereum proof-of-stake merge. However, the network failed to launch due to a misconfiguration and will require a relaunch.

Loading Tweet..

Sunsetting a blockchain is a typical process. Over time, they become difficult to maintain and run nodes on due to their growing state and transaction history. 

Designed to address supply issues

Holešky is designed to address Goerli’s goETH supply issues, which have caused headaches for developers.

Goerli goETH supply is capped at 115 million goETH total, meaning there can be no more than 115 million goETH circulating on the network. 

Developers testing on Goerli can receive goETH from a faucet. The token isn’t meant to have real-world value and exists so developers can pay gas fees when testing their products. 

But with its limited supply, individual wallets began hoarding the token. This made it more difficult for developers to test their applications on the testnet.

Holešky is designed to be much larger than Goerli, allowing validators to test in a more realistic on-chain environment and resolve the goETH supply issues. 

According to Parithosh Jayanthi, a developer at the Ethereum Foundation, Holešky will be able to handle a client size three times larger than that of Ethereum mainnet today.

“We need to launch Holesky with such a large number of validators in order to ensure we can test the limits of the beaconchain in a safe manner,” Jayanthi tweeted.

Don’t miss the next big story – join our free daily newsletter.


Upcoming Events

Hilton Metropole | 225 Edgware Rd, London

Mon - Wed, March 18 - 20, 2024

Crypto’s premier institutional conference returns to London in March 2024. The DAS: London Experience: Attend expert-led panel discussions and fireside chats Hear the latest developments regarding the crypto and digital asset regulatory environment directly from policymakers and experts.

Salt Lake City, UT

WED - FRI, OCTOBER 9 - 11, 2024

Pack your bags, anon — we’re heading west! Join us in the beautiful Salt Lake City for the third installment of Permissionless. Come for the alpha, stay for the fresh air. Permissionless III promises unforgettable panels, killer networking opportunities, and mountains […]

recent research

Top Icon.png


Osmosis thrived in H2 2023 on the back of increased DeFi activity deriving from recently launched Cosmos-related projects and better market conditions. With new value accrual mechanisms for the native token, Osmosis is well-positioned to continue its strong performance in 2024.



Though the opposing flow trend is likely to slow over time, industry watchers note, bitcoin fund assets could one day eclipse the $90 billion gold ETF space


Celestia had the first mover advantage. EigenDA has staked ether. What sets Avail apart?


Bitcoin moved 1% higher Monday morning in New York, Matrixport analysts say $62,000 could happen next month


It’s hard to believe right now that crypto — even with all of its flexibility and massive capabilities — could ever be like cash on the internet


Michael Saylor announced Monday morning that MicroStrategy bought 3k more bitcoin after the X account was compromised over the weekend


Plus, Pudgy Penguins grows its brand and a group of Autoglyphs sell for $14.5 million