Sepolia Shapella Announcement

1 year ago 204

Withdrawals are coming! The Shapella web upgrade volition activate connected the Sepolia web astatine epoch 56832, scheduled for 4:04:48 AM UTC connected Feb. 28, 2023
Stakers & node operators should work this station arsenic good arsenic the Withdrawals FAQ
The Zhejiang testnet tin beryllium utilized to trial Shapella functionality anterior to the Sepolia upgrade

After months of investigating and an ephemeral devnet launch, the Shanghai/Capella (a.k.a. Shapella) web upgrade is present scheduled for deployment connected Sepolia.

This upgrade follows The Merge and enables validators to retreat their involvement from the Beacon Chain backmost to the execution layer. It besides introduces caller functionality to some the execution and statement layer.

Upgrade Specification

The Shapella upgrade combines changes to the execution furniture (Shanghai), statement furniture (Capella) and the Engine API.

Shanghai

Execution furniture changes included successful Shanghai are disposable here. For reference, they are:

Note that EIP-6049 is lone a deprecation warning. Client teams expect SELFDESTRUCT semantics to alteration successful aboriginal web upgrades, but the opcode's behaviour remains unchanged successful Shanghai.

Additionally, the changes tin present beryllium viewed successful the Ethereum Execution Layer Specification (EELS), which is simply a caller Python notation implementation for the execution layer.

Capella

Changes to the statement furniture for the Capella upgrade are specified successful the capella directory of the v1.3.0-rc.3 specifications. At a precocious level, the upgrade introduces:

Full and partial withdrawals for validators
BLSToExecutionChange messages, which let validators utilizing a BLS_WITHDRAWAL_PREFIX to update it to an ETH1_ADDRESS_WITHDRAWAL_PREFIX, a prerequisite for withdrawals
Independent authorities and artifact humanities accumulators, replacing the archetypal singular humanities roots

Stakers are encouraged to work the Withdrawal FAQ for much accusation connected however they should hole for Capella.

Client Releases

The pursuing lawsuit releases enactment Shanghai & Capella connected the Sepolia testnet. Note that these releases are only for Sepolia. A consequent announcement volition beryllium made for the Goerli and mainnet releases.

When choosing which lawsuit to run, validators should beryllium particularly mindful of the risks of moving a bulk lawsuit connected some the EL and CL. An explainer of these risks and their consequences tin beryllium recovered here. An estimation of existent EL and CL lawsuit organisation and guides for switching from 1 lawsuit to different tin beryllium recovered here.

Consensus Layer Sepolia Releases

Execution Layer Sepolia Releases

Note: go-ethereum has enactment retired a caller recommended release, v1.11.2, for the upgrade. v1.11.1 is besides compatible with the Shapella Sepolia upgrade.

FAQ

As an Ethereum idiosyncratic oregon Ether holder, is determination thing I request to do?

In short, no.

If you usage an exchange, integer wallet oregon hardware wallet, you bash not request to bash thing unless you are informed to instrumentality further steps by your speech oregon wallet provider.

If you tally your ain Ethereum node, spot the "As a non-staking node operator, what bash I request to do?" conception below.

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

To beryllium compatible with the Shapella upgrade connected the Sepolia testnet, update your node to the mentation of your Ethereum lawsuit listed successful the array above.

As a staker, what bash I request to do?

To beryllium compatible with the Shapella upgrade connected the Sepolia testnet, update your node to the mentation of your Ethereum lawsuit listed successful the array above.

We urge speechmaking the Withdrawal FAQ. Additionally, you tin trial things connected the ephemeral Zhejiang testnet anterior to the upgrade activating connected Sepolia.

What happens if I americium a staker oregon node relation and I bash not enactment successful the upgrade?

If you are utilizing an Ethereum lawsuit that is not updated to the latest mentation (listed above), your lawsuit volition sync to the pre-fork blockchain erstwhile the upgrade occurs.

You volition beryllium stuck connected an incompatible concatenation pursuing the aged rules and volition beryllium incapable to nonstop Ether oregon run connected the post-Shapella Sepolia network.

As an exertion oregon tooling developer, what should I do?

Shapella does not present breaking changes for astute contracts. Application and tooling developers should reappraisal the upgrade changes to guarantee immoderate fixes are done, oregon to recognize however to usage recently introduced functionality.

Why "Shapella"?

Upgrades to the execution furniture travel Devcon metropolis names and those to the statement furniture travel prima names. "Shapella" is the operation of Shanghai, the determination of Devcon 2, and Capella, the brightest prima successful the bluish constellation of Auriga.

Cover representation by Yiran Ding

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