March 12, 2024 replace: For the reason that preliminary publication of this submit, a number of consumer groups have made Dencun-compatible releases containing vital efficiency and stability enhancements. Whereas beforehand introduced variations are nonetheless thought-about adequate for the improve, a column has been added to the Consumer Releases tables highlighting the most recent really helpful variations for all shoppers.

• Mainnet blobs are coming .oO: Two years after its ETHDenver inception, dozens of testing calls and devnets later, protodanksharding is lastly going stay on mainnet!
• Dencun will activate on the Ethereum mainnet at epoch 269568, occurring on March 13, 2024 at 13:55 UTC. Node operators & stakers should improve their software program to releases listed on this announcement.
• To obtain e-mail alerts for future community improve bulletins, subscribe right here.

The Dencun community improve has efficiently activated on all testnets. It’s now set for deployment on the Ethereum mainnet and can activate on the community at epoch 269568, occurring on March 13, 2024 at 13:55 UTC.

The improve, which follows final 12 months’s Shapella improve, consists of a number of modifications, most notably the introduction of ephemeral information blobs with EIP-4844, also referred to as “protodanksharding”, which can assist cut back L2 transaction charges.

If you would like to observe the improve because it occurs, please be part of the neighborhood livestream.

Improve Specification

The Dencun improve combines modifications to each Ethereum’s consensus and execution layers. The total checklist of protocol modifications might be present in EIP-7569. For reference, they’re:

Deneb

Full python specs for modifications affecting Ethereum’s consensus layer might be discovered within the deneb folder of the ethereum/consensus-specs repository.

Cancun

The EIPs linked above comprise the complete specs for modifications affecting Ethereum’s execution layer.

Moreover, a python specification for these is being carried out 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 the Ethereum mainnet. The Minimal Model column signifies the bottom Dencun-compatible launch for a consumer whereas the Beneficial Model column highlights the most recent really helpful model for it. Beneficial Model releases usually comprise efficiency and stability enhancements. If upgrading from a Minimal to Beneficial model, be certain to learn launch notes. Releases with vital breaking modifications haven’t been listed as Beneficial.

When selecting which consumer to run, validators must be particularly aware 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 might be discovered right here. An estimate of present EL and CL consumer distribution and guides for switching from one consumer to a different might be discovered right here.

Consensus Layer Mainnet Releases

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

Execution Layer Mainnet Releases

Notes:

• Whereas Reth helps Dencun, the consumer is present process a full audit and will not be appropriate for all manufacturing use instances. See the Reth README for extra context.

FAQ

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

Briefly, no. You may be part of us on the livestream to look at all of it occur stay!

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

When you run your individual Ethereum node, see the following query.

As a non-staking node operator, what do I have to do?

To be suitable with the mainnet Dencun improve, replace your node’s execution and consensus layer shoppers to the variations listed within the desk above.

As a staker, what do I have to do?

To be suitable with the mainnet Dencun improve, replace your node’s execution and consensus layer shoppers to the variations listed within the desk above. Be sure that each your beacon node and validator consumer are up to date, in addition to any exterior dependencies, reminiscent of exterior block constructing software program.

Moreover, stakers who need to run by the improve course of extra instances earlier than mainnet are inspired to make use of ephemery.dev, which now helps Dencun.

What occurs if I’m a staker or node operator and I don’t take part within the improve?

In case you are 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’ll 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 utility or tooling developer, what ought to I do?

Evaluation the EIPs included in Dencun to find out if and the way they have an effect on your venture — there are lots 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.

Why “Dencun”?

Upgrades to the consensus layer use star names, and people to the execution layer observe Devcon metropolis names. “Dencun” is the mix of Deneb, a first-magnitude star within the Cygnus constellation, and Cancun, the placement for Devcon 3.

Thanks to everybody who helped deliver the blobs into existence, (practically) rid us of SELFDESTRUCT and usually ship another main overhaul to the Ethereum community .oO!

Unique cowl picture by Darren Lawrence, with modifications by Tomo Saito.