According to Cointelegraph: Ethereum's Dencun upgrade has finished its final stage of testing on the Holesky testnet and is now awaiting its mainnet deployment date. The upgrade, which includes the Ethereum Improvement Proposal (EIP)-4844, often referred to as “proto-danksharding,” is expected to significantly reduce transaction costs on Ethereum's layer-2.
The highlight of EIP-4844, or "blobs", permits temporary storage and retrieval of vast amounts of off-chain data by Ethereum nodes. According to Philippe Schommers, head of infrastructure at Gnosis, Dencun's implementation on the Ethereum mainnet could reduce rollup costs by up to 10 times.
The decision on the mainnet deployment date for Dencun is set to be discussed in an AllCoreDevs call on February 8. Dencun combines the advancements of the Cancun and Deneb updates and is projected to be most impactful upgrade to Ethereum since last April.
While Cancun aims to facilitate network scalability at the execution layer, incorporating EIP-1153, EIP-4788, and EIP-6780, Deneb focuses on enhancing Ethereum's consensus layer. Dencun had been previously deployed on the Goerli and Sepolia testnets in January.
However, its Goerli deployment faced a four-hour delay due to a bug in Prysm, Ethereum's proof-of-stake client, highlighting the importance of multiple clients and testnets in Ethereum's ecosystem.
