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

MON - WED, MARCH 18 - 20, 2024

Digital Asset Summit (DAS) is returning March 2024. What you can expect: And more! Don’t miss out on the opportunity to be in the room when the future of crypto is decided. Join us and help shape the future of our […]

recent research

Research report - cover graphics-2.jpg


Base has doubled-down on its commitment to the Superchain vision, has shown early signs of success with nearly $400M in TVL, and has become home to novel dapps such as which has seen significant traction.


The SEC, in a Friday court filing, said it reserves its right to object to the plan from Celsius


Largely unnoticed until Monday, stakeholder Justin Sun confirmed a $8 million hack in a tweet


Crypto is that perfect edge for candidates to use to gain votes and campaign dollars


Coinbase can offer crypto custody, crypto buying and selling and crypto trading as part of the registration


The latest industry scandal has rattled Hong Kong’s ambition to become a global crypto hub as its main financial regulator ramps up measures designed to protect investors


Coinbase holds about 5% of the total bitcoin in circulation, according to on-chain analytics firm Arkham Intelligence