Ethereum core developers have implemented the Dencun upgrade on Holesky, marking the final Ethereum testnet upgrade before an anticipated mainnet deployment next month.

The Dencun upgrade was forked on the Holesky testnet at around 6:35 a.m. ET, as confirmed by Ethereum execution client Nethermind.

The phased approach for implementing the upgrade previously saw Dencun deployed on the Goerli testnet on Jan. 17 and the Sepolia testnet on Jan. 30. A date for the mainnet deployment of Dencun is now expected to be set during the Ethereum All Core Developers call later today — anticipated for early to mid-March.

Introducing proto-danksharding

Dencun combines the Cancun and Deneb upgrades on Ethereum, with Cancun targeting improvements in the execution layer and Deneb focusing on …