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Ethereum Launches Sepolia Shadow Fork Ahead of Fusaka Upgrade

Ethereum Launches Sepolia Shadow Fork Ahead of Fusaka Upgrade

Ethereum’s Fusaka upgrade has been activated on the Sepolia testnet, advancing towards its December mainnet deployment with enhanced scalability and performance features.

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Fact Check
The statement is directly confirmed by evidence from a summary of the All Core Developers Execution (ACDE) Call #222, which states 'Fusaka's Sepolia shadow-fork success'. Other provided sources corroborate the general practice of Ethereum developers using shadow forks on testnets like Sepolia to test major upgrades, such as Pectra and the Merge, lending high credibility to the claim.
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Summary

The Ethereum Fusaka upgrade was successfully activated on the Sepolia testnet on October 14, marking a key milestone before its expected December mainnet launch. Following a successful trial on the Holesky testnet, Fusaka introduces PeerDAS, which enables validators to process partial data, reducing bandwidth requirements and costs. The final test on the Hoodi network is scheduled for October 28, after which the mainnet deployment timeline will be finalized.

Terms & Concepts
  • Fusaka: An Ethereum network upgrade introducing PeerDAS, which allows validators to process partial data to lower bandwidth requirements and costs.
  • PeerDAS: A new protocol introduced with the Fusaka upgrade, designed to allow validators to process partial data, reducing bandwidth and operational costs.
  • Testnet: A blockchain environment used for testing new upgrades and features without impacting the main Ethereum network.