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Ethereum’s Dencun upgrade, introducing “proto-danksharding,” has successfully completed its final stage of testing via the Holesky testnet and is now awaiting a date for its mainnet deployment.
Data <a href="https://holesky.beaconcha.in/" target="_blank" rel="noopener noreferrer nofollow">shows</a> the Dencun upgrade was forked on Holesky at about 11:35 am UTC on Feb. 7, with Nethermind sharing the news on X shortly after. The upgrade is widely expected to drive down transaction costs on Ethereum layer-2s.
<blockquote class="twitter-tweet">
 Aaaand we've finalized!— Nethermind (@NethermindEth) <a href="https://twitter.com/NethermindEth/status/1755198403955359786?ref_src=twsrc%5Etfw" rel="noopener noreferrer nofollow">February 7, 2024</a>
</blockquote>
Dencun will notably introduce proto-danksharding via Ethereum Improvement Proposal-4844.
The key feature of EIP-4844 are “blobs,” which will allow for the temporary storage and access of large amounts of off-chain data by Ethereum nodes.
Philippe Schommers, head of infrastructure at Gnosis previously explained to Cointelegraph that the implementation of Dencun on the Ethereum mainnet could <a href="https://cointelegraph.com/news/ethereum-devs-10x-lower-rollup-costs-dencun-upgrade-testnets" rel="noopener noreferrer nofollow">lower rollup costs</a> by up to 10 times.
A date for the mainnet deployment of Dencun is expected to be <a href="https://cointelegraph.com/news/ethereum-dencun-upgrade-launch-date-scheduled-next-week" rel="noopener noreferrer nofollow">decided on Feb. 8</a> in an AllCoreDevs call, while Ethereum bull Anthony Sassano <a href="https://twitter.com/sassal0x/status/1755025850905604271" target="_blank" rel="noopener noreferrer nofollow">said</a>&nbsp;on Feb. 7 that “all signs point to early-mid March.”
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Dencun, which combines the Cancun and Deneb upgrades is set to be the most significant upgrade of Ethereum since the <a href="https://cointelegraph.com/news/ether-price-cracks-2k-amid-staking-withdrawals-enabled-post-shapella-upgrade" rel="noopener noreferrer nofollow">Shapella upgrade</a> last April, which allowed the unstaking of Ether <a href="https://cointelegraph.com/ethereum-price" rel="noopener noreferrer nofollow">(ETH)</a> from the Beacon Chain for the first time since the proof-of-stake chain launched on Dec. 1, 2020.
Cancun is focused on network scalability at the execution layer. While EIP-4844 is the centerpiece, EIP-1153, EIP-4788, and EIP-6780 are also part of the upgrade.&nbsp;
Deneb, meanwhile, is focused on improving Ethereum’s consensus layer.
<blockquote class="twitter-tweet">
 In my continuing quest to document the history of Ethereum improvements in song, I present: "Dencun Finalized On Holesky" collect: songaday [dot] world [slash] 5516 <a href="https://t.co/lL04wcfalq" rel="noopener noreferrer nofollow">pic.twitter.com/lL04wcfalq</a>— 16 years of song a day (@songadaymann) <a href="https://twitter.com/songadaymann/status/1755273231127515185?ref_src=twsrc%5Etfw" rel="noopener noreferrer nofollow">February 7, 2024</a>
</blockquote>
Prior to Holesky, Dencun was deployed on the Goerli and Sepolia testnets on Jan. 17 and Jan. 30, respectively.
The deployment of Dencun to Goerli did, however, suffer a four-hour delay caused by a bug that <a href="https://cointelegraph.com/news/ethereum-dencun-upgrade-goes-live-testnet-after-4-hour-delay" rel="noopener noreferrer nofollow">prevented the testnet from finalizing the upgrade</a>.
“The network could not sync with nodes because of a bug in Prysm, Ethereum’s proof-of-stake client,” said Nebojsa Urosevic, a founder of Ethereum development platform Tenderly, told Cointelegraph at the time.
“It’s one of the reasons why there are multiple clients and why testnets exist,” Urosevic added.
Magazine: ‘<a href="https://cointelegraph.com/magazine/account-abstraction-supercharges-ethereum-wallets-dummies-guide/" rel="noopener noreferrer nofollow">Account abstraction’ supercharges Ethereum wallets: Dummies guide</a>

Ethereum upgrade aimed at lowering L2 TX costs eyes mainnet deployment

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