PANews reported on January 25 that Ethereum developers have set a timeline for the final "Dencun" testnet upgrade, according to CoinDesk. This upgrade, known as EthereumBlockchain's biggest update in a year, mainly includes the introduction of the "proto-danksharding" feature. If all goes according to plan, Dencun is scheduled to go live on Ethereum's Mainnet in late February or early March. Tim Beiko, the Ethereum Foundation's head of protocol support, called on network Node operators to update their Nodes. Earlier today, it was reported that Ethereum Sepolia and Holesky will undergo Dencun upgrades on February 1 and 7, respectively, and if the upgrade goes well, it will be scheduled on the Mainnet.

According to official information, the public chain project Gnosis Chain said that its Chiado Testnet will Hard Fork be upgraded at 2:15:40 on February 1, 2024, Slot: 8265728, Epoch: 516608. The following EIPs will be deployed for this upgrade: EIP-1153: transient storage Operation code; EIP - 4788: Beacon Block Root in EVM; EIP - 484: Sharding Blob Transactions; EIP - 7516: BLOBBASEFEE Operation Code; EIP - 5656: MCOPY (memory copy instruction); EIP - 6780: SELFDESTRUCT ONLY IN THE SAME TRANSACTION. One of the most important features is blob support (EIP - 4844 Proto-Danksharding), which will enable L2 chains to scale and provide a cheaper Data Layer.

PANews reported on December 21 that according to CoinDesk, ETH developers are stepping up testing for next year's Dencun upgrade, which is a major milestone and aims to increase data storage capacity through a new process called "proto-danksharding". Developers discussed their goals in a bi-weekly meeting to run Dencun on the Goerli testnet on January 17, an upgrade that is expected to reduce Layer 2 rollup fees and scale the blockchain by adding "blobs" of data. Developers are working on a test schedule for the Dencun upgrade, with plans to run on the Sepolia testnet on January 31 and the Holesky testnet on February 7, before the changes are expected to be deployed to the main network by the end of February. Please also note that these dates are subject to change due to the results of the testnet fork.

Odaily Planet Daily reported that Nicolas Liochon, head of zkEVM Linea at Consensys, said in an interview during Korea Blockchain Week that proto-danksharding (also known as Ethereum Improvement Proposal EIP-4844) has the potential to cut Rollup costs by more than 90% . Liochon explained that the transaction cost on Linea is only equivalent to 1/15 of the cost on Ethereum L1, but the rollup cost is still higher. EIP-4844 introduces data blocks that can be sent and appended to Ethereum blocks, where the data stored is inaccessible to the Ethereum Virtual Machine (EVM) and set to be deleted after a specified period of time. This innovation is expected to significantly reduce transaction costs and solve the core problem of data availability, which accounts for 95% of Rollup costs. Liochon emphasized that Linea’s Prover is responsible for off-chain calculation, verification, bundling, and generation of cryptographic proofs of combined transactions, which account for only 20% of the total cost. In addition, Linea hopes to be a versatile zkRollup for various DApps and solutions in the Ethereum ecosystem to meet the needs of DeFi, gaming, and social applications. It is reported that the Ethereum Foundation has not yet announced the specific release date of proto-danksharding, and related development and testing work is still underway. (Cointelegraph)

According to PANews news on May 31, according to Blockworks reports, there are currently 100,000 independent addresses to help Ethereum EIP-4844 introduce "blob-carrying transactions" for random data sampling. It is reported that block space on Ethereum is very precious, so in order to reduce the requirement to verify Layer 2 data, Ethereum will use a polynomial commitment scheme called KZG commitment, which is necessary for data availability sampling under proto-danksharding . The KZG promise requires a "trusted setup", and in order for the setup to be trusted, there needs to be a set of random values that are used as anonymous inputs. When it opens to the public on April 17, data contributions will be limited to Ethereum users with a large transaction history to reduce waiting times. But these limits were gradually reduced, and now users can contribute only 16 transactions.

Jinse Finance reports that in order to scale Ethereum, researchers have proposed a plan to make it cheaper to store data from Layer 2 aggregation. The first phase entails introducing EIP-4844 (known as proto-danksharding) to the Ethereum mainnet, which is expected to happen with the Dencun upgrade before the end of the year. But to do that, they need some entropy, random data. EIP-4844 will introduce a new "blob-carrying transaction", a temporary data storage mechanism used in layer 2 to pass data to Ethereum mainnet validators. Ethereum researchers devised a way for anyone with an Ethereum address to participate, as long as they have some history of using the network. When it opens to the public on April 17, donations will be limited to Ethereum users with a large transaction history to reduce waiting times. But these limits were gradually reduced, so that today you can only contribute 16 transactions. The lowered threshold is one of the reasons for the rising number of total contributions, which recently surpassed 100,000 unique contributions. This doesn't necessarily mean 100,000 people, a single person can have multiple addresses, but only one contribution is allowed per address, and each contributes a small amount of security to Ethereum's rollup-centric future.