Sepolia & Holesky Dencun Announcement

Important update: Lodestar published a brand new release after this article was first published. v1.15.0Holesky is a service that Holesky customers must use upgrade Dencun will activate on the 7th of February. Prysm as well as Nimbus both released highly recommended Holesky versions. Users of Prysm are encouraged to use v4.2.1Nimbus users and. v24.2.0.

• Goerli blobs: Dencun became live on Goerli, at 632 UTC, on January 17, 2024. You can now use them!
• Sepolia Holesky and upgrade Over the years, there have been many attempts to improve on the existing system. next Two weeks. Dencun activates on Sepolia epoch 132608 Holesky and Holesky at epoch on January 30th (22:51 UTC). 29696 (February 7th, 11:35 UTC).
• This announcement is suitable for both Testnet Upgrades and Client Releases.
• Dencun is scheduled to be released on the Ethereum mainnet if the Sepolia upgrade and Holesky upgrade go as planned. next.
• Receive an email alert when a network is online upgrade Subscribe to receive announcements including those about the Dencun Mainnet. here.

Dencun is a network of Dencun upgrade The Goerli Testnet was successfully activated at 17 January 2024. The remaining two testnets Sepolia, and Holesky will be activated at the following time:

You can also find out more about the following: upgrade Includes several changes. Most notably, the introduction of EIP-4844 (also known as ephemeral blobs). “protodanksharding”This will reduce L2 transaction costs.

Dencun is the first to follow last year’s Shapella upgrade. First, it will be deployed on Ethereum testnets. When all of these are running smoothly, the upgradeDencun’s deployment will be planned on Ethereum’s mainnet.

Upgrade Specification

Dencun upgrade The changes combine both Ethereum’s execution and consensus layers. You can find the full list of changes in EIP-7569. As a reference:

Deneb

The Ethereum Consensus Layer can be modified using complete python specs. deneb folder You can also check out the ethereum/consensus-specs repository.

Cancun

The EIPs that are linked above provide the full specifications on changes to Ethereum’s Execution Layer.

Also, a Python specification is being implemented for these in the ethereum/execution-specs repository.

Deneb, a distributed consensus system, requires changes to the Engine API. This API is used for communication among the nodes of the execution and consensus layers. These are outlined in the cancun.md file You can also check out the ethereum/execution-apis repository.

Client Releases

Dencun is supported by the following client releases Sepolia and Holesky. The mainnet support will be enabled with the release of new versions. When these versions are released, we will make an announcement on this blog.

Validators must be aware of the potential risks when running majority clients on either the execution or consensus layers. You can find an explanation of the risks and their effects. here. On this page, you can find a distribution estimate for EL and CL clients and guides to switching from one client into another. here.

Consensus Layer Sepolia & Holesky Releases

Notes:

• Holesky Lodestar users v1.15.0 rc.0 You can also read about how to get started. upgrade Version 1.15.0 is available.
• Holesky Nimbus users are strongly encouraged to upgrade their Holesky Nimbus version 24.1.2. upgrade Download the latest version of v24.2.0.
• Holesky Prysm 4.2.1-rc.1 is highly recommended for Holesky Prysm V4.2.1 users. upgrade To v4.2.1.
• Both the Consensus Layer Beacon Node as well as Validator Client need to be updated before running a validator.

Execution Layer Sepolia & Holesky Releases

Note:While Reth supports Dencun the client still awaits a full audit. Use of this product is not recommended. See the Reth README Click here for more information.

The FAQ

What do I need to know as an Ethereum or Ether user?

No.

You do not have to do anything to use an exchange, digital or hardware wallet unless your provider of the exchange or wallet informs you to.

If you run your own Ethereum node, please see the next question.

As a Non-Staking Sepolia or Holesky Node operator: What am I required to do?

Compatible with the upgrade Update your node’s consensus layer and execution layer clients on either testnet to the versions listed above.

As a Sepolia or Holesky What do I have to do as a staker?

Compatible with the upgrade Update your node’s consensus layer and execution layer clients on either testnet to the versions listed above. Update both the beacon node as well as your validator client.

What do I have to do as a non-Sepolia node operator, or staker?

There is nothing to announce at this time. Dencun mainnet activation will be announced in the future. You can subscribe to an email alert. here.

Stakers that want to run through upgrade Use the mainnet more often before you are encouraged to do so ephemery.devDencun is now supported by.

What happens to me if I am not a Sepolia, Holesky staker/node operator? upgrade?

The Ethereum client you use will sync with the pre-fork Blockchain if it is not the latest version. upgrade occurs.

You will remain on an old, incompatible blockchain and be unable send Ether to anyone or use the post-Dencun Ethereum Network.

What should I be doing as a tool or application developer?

Dencun includes a number of EIPs that can affect your project. Only the EIPs that have backwards compatible implications are EIP-6780, EIP-7044 You can also find out more about the following: EIP-7514.

Why? “Dencun”?

Upgrades of the consensus layer will use star names and those of the execution layer will follow Devcon city name. “Dencun” Deneb, an astronomical star with a magnitude of one in the Cygnus constellation and Cancun as the site for Devcon 3 are combined.

Original cover image by Darren LawrenceWith modifications by Tomo Saito.