The article discusses the launch of a new Ethereum testnet called Holešky and the upcoming end of the Goerli testnet. Testnets are used by developers to test protocols and smart contracts before deploying them on the main blockchain. The Goerli testnet had a limited supply of goETH tokens, which caused difficulties for developers. Holešky aims to be larger than Goerli and able to handle a larger client size. The testnet will help resolve the goETH supply issues and allow for testing in a more realistic on-chain environment. The launch of Holešky hit a speed bump, but the Ethereum Foundation is working to address the issue.
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