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Ethereum developers advanced a new timeline for the Dencun mainnet upgrade in the most recent All Core Developers Execution (ACDE) call held on October 26.
During the week, precisely on Monday, October 23, the developers released Devnet-10 to test the Cancun/Deneb (Dencun) update. The devnet was configured with 330,000 active validators to force a change to the validator churn limit.
Some bugs were found in devnet 10, one related to synchronization with Prysm and another with the handling of buckets in Teku, both of which are now being fixed. There were also some problems related to blocks produced by builders.
During the most recent ACDE meeting, developers discussed the timing for the introduction of Devnet-11, the Goerli shadow fork, and the activation of Dencun on Goerli.
The developers decided to start a shadow fork of the Goerli testnet in addition to Devnet-11. By definition, shadow forks are a type of developer-focused testnet that is done by forking a live network with a small number of nodes.
By all indications, Goerli won’t be rolling out the Dencun update until late November at the earliest.
Since testnet activations for Ethereum upgrades typically occur two weeks apart, following the Dencun activation in Goerli in late November, two testnet upgrades are projected to occur in Sepolia and Holesky in early and mid-December, respectively.
This schedule is based on the assumption that no serious issues are discovered between test network activations. Even the perfect timeline would place Dencun mainnet activation sometime after the holidays in late December, according to Tim Beiko.
Dencun activation on Mainnet likely after the holidays: Tim Beiko
In a tweet, Ethereum lead developer Tim Beiko stated: “Realistically, with Goerli forking at the end of November and testnets typically requiring at least 2 weeks between them (so teams can fix any bugs and release new versions), mainnet would happen after vacation”.
He further added: “Nothing here is set or final, of course, but at least a path to Mainnet is being laid out. For next week’s ACDC, we will launch devnet-11 with all clients configured with mev-boost and try to run a fork of Goerli shadow.”
