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- Goerli blobs are right here: Dencun went dwell on Goerli at 6:32 UTC on January 17, 2024. Now you can use blobs there!
- Sepolia and Holesky will improve over the following two weeks. Dencun will activate on Sepolia at epoch 132608 (January thirtieth, 22:51 UTC), and on Holesky at epoch 29696 (February seventh, 11:35 UTC).
- Consumer releases on this announcement are appropriate for each testnet upgrades.
- Assuming the Sepolia and Holesky upgrades go properly, Dencun will likely be scheduled on the Ethereum mainnet subsequent.
- To obtain an e mail alert for community improve bulletins, together with the Dencun mainnet one, subscribe here.
The Dencun community improve has efficiently activated on the Goerli testnet on January 17, 2024. It’s now scheduled for the 2 remaining testnets, Sepolia and Holesky, on the following instances:
The improve consists of a number of adjustments, most notably the introduction of ephemeral information blobs with EIP-4844, often known as “protodanksharding”, which is able to assist scale back L2 transaction charges.
Dencun follows final yr’s Shapella upgrade. It’s going to first be deployed to Ethereum testnets. As soon as these all are easily working the improve, Dencun will likely be scheduled for deployment on the Ethereum mainnet.
Improve Specification
The Dencun improve combines adjustments to each Ethereum’s consensus and execution layers. The complete checklist of protocol adjustments could be present in EIP-7569. For reference, they’re:
Deneb
Full python specs for adjustments affecting Ethereum’s consensus layer could be discovered within the deneb folder of the ethereum/consensus-specs repository.
Cancun
The EIPs linked above comprise the complete specs for adjustments affecting Ethereum’s execution layer.
Moreover, a python specification for these is being carried out within the ethereum/execution-specs repository.
Lastly, Deneb requires adjustments 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 shopper releases assist Dencun on each Sepolia and Holesky. Additional variations will activate assist on mainnet. As soon as these are launched, one other announcement will likely be made on this weblog.
When selecting which shopper to run, validators needs to be particularly aware of the dangers of working a majority shopper on both the execution layer (EL) or consensus layer (CL). An explainer of those dangers and their penalties could be discovered here. An estimate of present EL and CL shopper distribution and guides for switching from one shopper to a different could be discovered here.
Consensus Layer Sepolia & Holesky Releases
Observe: when working a validator, each the Consensus Layer Beacon Node and Validator Consumer should be up to date.
Execution Layer Sepolia & Holesky Releases
Observe: whereas Reth helps Dencun, the shopper continues to be pending a full audit and is not advisable for manufacturing use. See the Reth README for extra context.
FAQ
As an Ethereum person or Ether holder, is there something I must do?
In brief, no.
For those who use an trade, digital pockets or {hardware} pockets you do not want to do something except you’re knowledgeable to take further steps by your trade or pockets supplier.
For those who run your individual Ethereum node, see the following query.
As a non-staking Sepolia or Holesky node operator, what do I must do?
To be suitable with the improve on both testnet, replace your node’s execution and consensus layer shoppers to the variations listed within the desk above.
As a Sepolia or Holesky staker, what do I must do?
To be suitable with the improve on both testnet, replace your node’s execution and consensus layer shoppers to the variations listed within the desk above. Ensure each your beacon node and validator shopper are up to date.
As a non-Sepolia or Holesky node operator or staker, what do I must do?
Nothing for now. Additional bulletins will likely be made for Dencun’s activation on mainnet. You possibly can signal as much as obtain an e mail alert for them here.
Stakers who wish to run by way of 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 Sepolia or Holesky staker or node operator and I don’t take part within the improve?
In case you are utilizing an Ethereum shopper that’s not up to date to the most recent model (listed above), your shopper will sync to the pre-fork blockchain as soon as the improve happens.
You may 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?
Overview the EIPs included in Dencun to find out if and the way they have an effect on your undertaking — 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 comply with 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.
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