• The blobs are coming: Dencun will go reside on Goerli at 6:32 UTC on January 17, 2024.
• Dencun will likely be Goerli’s final improve earlier than core groups cease supporting it. Extra on this in a earlier submit.
• Assuming the Goerli improve goes nicely, the Sepolia and Holesky testnets will activate Dencun over the subsequent few weeks.
• To obtain an electronic mail alert for community improve bulletins, subscribe right here.

The Dencun community improve is scheduled to activate on the Goerli testnet at 6:32 UTC on January 17, 2024. The improve consists of a number of modifications, most notably the introduction of ephemeral knowledge blobs with EIP-4844, often known as “protodanksharding”, which can assist scale back L2 transaction charges.

Dencun follows final yr’s Shapella improve. It’s 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 working easily on all three testnets, mainnet activation will likely be scheduled.

Dencun will likely 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 total record 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.

Shopper Releases

The next consumer releases assist Dencun on Goerli. Additional variations will activate assist on different testnets and mainnet. As soon as these are launched, one other announcement will likely be made right here.

When selecting which consumer to run, validators ought to be particularly conscious of the dangers of working 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

Word: when working a validator, each the Consensus Layer Beacon Node and Validator Shopper have to be up to date.

Execution Layer Goerli Releases

Word: whereas Reth helps Dencun, the consumer remains to be pending a full audit and is not beneficial 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. Crucial bugs at the moment are value as much as $500,000 USD! See the bug bounty program for extra particulars.

FAQ

As an Ethereum consumer or Ether holder, is there something I have to do?

In brief, no.

Should you use an alternate, digital pockets or {hardware} pockets you don’t want to do something except you might be knowledgeable to take further steps by your alternate or pockets supplier.

Should you run your individual 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 will likely be made for Dencun’s activation on Sepolia, Holesky and mainnet. You’ll be able to signal as much as obtain an electronic mail alert for them right here.

Stakers who wish to run by way of the improve course of extra occasions earlier than mainnet are inspired to make use of ephemery.dev, which can quickly assist 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 isn’t 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 previous guidelines and will likely 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 numerous 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 comply with the improve taking place?

The Goerli improve will likely be livestreamed right here.

Why “Dencun”?

Upgrades to the consensus layer use star names, and people to the execution layer comply with Devcon metropolis names. “Dencun” is the mix 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.