The Dencun community improve is scheduled to activate on the Goerli testnet at 6:32 UTC on January 17, 2024. The improve contains a number of modifications, most notably the introduction of ephemeral information blobs with EIP-4844, also referred to as “protodanksharding”, which can assist scale back L2 transaction charges.
Dencun follows final yr’s Shapella improve. It is going to first be deployed to the Goerli testnet. Then, if no main points are discovered, to Sepolia and Holesky. As soon as Dencun is operating easily on all three testnets, mainnet activation shall be scheduled.
Dencun shall be Goerli’s final improve. After it has been activated on mainnet, consumer and EF testing groups will cease supporting the Goerli testnet. For extra particulars, see this earlier announcement.
Improve Specification
The Dencun improve combines modifications to each Ethereum’s consensus and execution layers. The complete checklist of protocol modifications could be present in EIP-7569. For reference, they’re:
Deneb
Full python specs for modifications affecting Ethereum’s consensus layer could be discovered within the deneb folder of the ethereum/consensus-specs repository.
Cancun
The EIPs linked above include the complete specs for modifications affecting Ethereum’s execution layer.
Moreover, a python specification for these is being applied within the ethereum/execution-specs repository.
Lastly, Deneb requires modifications to the Engine API, used for communication between the consensus and execution layer nodes. These are specified within the cancun.md file of the ethereum/execution-apis repository.
Consumer Releases
The next consumer releases help Dencun on Goerli. Additional variations will activate help on different testnets and mainnet. As soon as these are launched, one other announcement shall be made right here.
When selecting which consumer to run, validators ought to be particularly conscious of the dangers of operating a majority consumer on both the execution layer (EL) or consensus layer (CL). An explainer of those dangers and their penalties could be discovered right here. An estimate of present EL and CL consumer distribution and guides for switching from one consumer to a different could be discovered right here.
Consensus Layer Goerli Releases
Be aware: when operating a validator, each the Consensus Layer Beacon Node and Validator Consumer should be up to date.
Execution Layer Goerli Releases
Be aware: whereas Reth helps Dencun, the consumer continues to be pending a full audit and isn’t advisable for manufacturing use. See the Reth README for extra context.
Dencun Bug Bounty Bonus
All Dencun-related bug bounties for in-scope vulnerabilities will obtain a 2x multiplier between now and two weeks previous to when the mainnet improve is scheduled to happen. Essential bugs at the moment are price as much as $500,000 USD! See the bug bounty program for extra particulars.
FAQ
As an Ethereum person or Ether holder, is there something I have to do?
Briefly, no.
If you happen to use an alternate, digital pockets or {hardware} pockets you do not want to do something until you might be knowledgeable to take extra steps by your alternate or pockets supplier.
If you happen to run your personal Ethereum node, see the subsequent query.
As a non-staking Goerli node operator, what do I have to do?
To be appropriate with the Goerli improve, replace your node to the model of your Ethereum consumer listed within the desk above.
As a Goerli staker, what do I have to do?
To be appropriate with the Goerli improve, replace your node to the model of your Ethereum consumer listed within the desk above. Make certain each your beacon node and validator consumer are up to date!
As a non-Goerli node operator or staker, what do I have to do?
Nothing for now. Additional bulletins shall be made for Dencun’s activation on Sepolia, Holesky and mainnet. You possibly can signal as much as obtain an e mail alert for them right here.
Stakers who wish to run via the improve course of extra instances earlier than mainnet are inspired to make use of ephemery.dev, which can quickly help Dencun.
What occurs if I’m a Goerli staker or node operator and I don’t take part within the improve?
If you’re utilizing an Ethereum consumer that’s not up to date to the most recent model (listed above), your consumer will sync to the pre-fork blockchain as soon as the improve happens.
You can be caught on an incompatible chain following the outdated guidelines and shall be unable to ship Ether or function on the post-Dencun Ethereum community.
As an software or tooling developer, what ought to I do?
Overview the EIPs included in Dencun to find out if and the way they have an effect on your mission — there are a lot of new thrilling options being launched throughout each the execution and consensus layers! The one EIPs with backwards compatibility implications are EIP-6780, EIP-7044 and EIP-7514.
The place can I observe the improve occurring?
The Goerli improve shall be livestreamed right here.
Why “Dencun”?
Upgrades to the consensus layer use star names, and people to the execution layer observe Devcon metropolis names. “Dencun” is the mixture of Deneb, a first-magnitude star within the Cygnus constellation, and Cancun, the placement for Devcon 3.
Authentic cowl picture by Darren Lawrence, with modifications by Tomo Saito.
