The Crypto Roundup: 22 December 2023 | CryptoCompare.com

Ethereum’s Cancun-Deneb upgrade, also known as Dencun, is set to begin testing on January 17, first being applied to the Goerli testnet before being added to Sepolia on January 30. Ethereum’s developers haven’t yet announced when it will be launched on the mainnet.

The Dencun upgrade introduces various tools meant to lower transaction fees, enable new functionalities for bridges and staking pools, and restrict the use of self-destruct operations on smart contracts.

Developer documents details that Dencun will include Ethereum Improvement Proposal (EIP) 4844, known as “proto-danksharding.” EIP-4844 will allow layer-2 rollup networks like Arbitrum, Basen and Polygon zkEVM, to temporarily store certain transaction data.

Ethereum’s developers believe that proto-danksharding will significantly reduce layer-2 transaction fees. It will be coupled with EIP-1153 that introduces a “transient storage” system to further help reduce transaction fees, as well as EIP-4788 to increase transparency.

Dencun also includes EIP-6780, which limits the use of the self-destruct keyword to erase the code of a smart contract and return funds to its deployer. With Dencun, self-destruct only erases code if called in the same transaction as deployment. It still sends funds to the deployer if called in a future transaction.

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• Source: https://www.cryptocompare.com/email-updates/daily/2023/dec/22/