What is Shanghai/Capella hardfork?
Shanghai/Capella hardfork enables validator withdrawal and several execution layer update on Gnosis Chain. EIPs that are included in this hardfork: EIP-3651, EIP-3855, EIP-3860, EIP-6049.
Validator withdrawal allows a validator's account balance get withdrawn from Beacon Chain to Execution Layer, in the form of GNO. The GNO will be accrued on validator's withdrawal address on the Execution Layer, which is set using
eth1_withdrawal_address option during validator key generation.
Check out validator withdrawal for more details.
When did Shanghai/Capella hardfork happen?
Time: August 1, 2023 at 11:34.20 UTC
How to Prepare
Check Withdrawal Credentials
For any type of withdrawals, a validator need to have
0x01withdrawal credential. You’re fine if you used
--eth1_withdrawal_addressto create your validator keys. If not, tooling will be made available.
Refer to validator withdrawal for more details.
Update your clients
✅ Lighthouse v4.3.0
✅ Teku v23.6.1
✅ Nimbus v23.6.0 (only with the following Docker image: http://ghcr.io/gnosischain/gnosis-nimbus-eth2:v23.6.0)
✅ Lodestar v1.9.1
✅ Teku Gnosis v0.1.9
✅ Lighthouse Gnosis v0.1.10
✅ Lodestar Gnosis v0.1.2
✅ Nethermind xDAI v1.0.34
⌛️ Erigon and Nimbus - Forthcoming
How to claim your withdrawal?
As we have modified some specs regarding the withdrawals to enable withdrawing GNO instead of the native gas token xDai, unlike Ethereum, partial withdrawals currently do not happen automatically. So, for now, you will need to call
claimWithdrawal function on the contract. However, it is in our plans to automate and subsidize partial withdrawals in the future.
Please check guide on voluntary exit.