- The Sepolia testnet undergoes a post-merge execution layer (EL) improve on the block. 1735371scheduled for August 17, 2022
- The improve disconnects EL shoppers on the community from friends that haven’t transitioned to Proof of Stake. No further options might be added.
- Sepolia node operators should improve execution layer shoppers earlier than blocking 1735371.
- As these networks transition to Proof of Stake, we anticipate related upgrades for Goerli and the Ethereum mainnet.
Background
To take care of a wholesome peer record, nodes in Ethereum’s execution layer mechanically disconnect friends that should not have the identical improve sequence.On Ethereum mainnet, this implies checking if a peer has been upgraded frontier decompression At block 200,000, then homestead Proper as much as the newest upgrades, comparable to block 1,150,000, grey glacieroccurred at block 15,050,000. EIP-2124 Specifies how that is dealt with. In a typical block-height-triggered community improve, this occurs mechanically, because the node makes use of the block-height of the upcoming improve to filter friends.
In The Merge, upgrades whole problem Worth as an alternative of block quantity. The rationale for this alternative is EIP-3675:
Utilizing pre-defined block numbers for arduous forks is unsafe on this context as PoS fork choice takes priority throughout migration.
An attacker may use a small quantity of hashing energy to assemble a malicious chain fork that meets the block peak requirement. The primary her PoS block may then be maliciously proposed on prime of her PoW block from this hostile fork, taking the lead and breaking the safety of the migration.
To guard the community from this assault state of affairs, an improve is triggered utilizing the problem gathered by the chain (Complete Issue).
To attenuate modifications to the protocol throughout probably the most advanced improve since launch, The Merge was designed to exclude EIP-2124 compatibility. Because of this you’ll have to do an extra improve so as to add it. It is necessary to notice that the one change launched as a part of this improve is to specify a block quantity that nodes can use to determine friends which have handed by a merge. No different options might be launched or deprecated as a part of this improve.
Improve info
timing
This improve might be within the block of Sepolia 1735371scheduled for August 17, 2022.
Word that related upgrades might be introduced for Goerli and mainnet after these networks transition to Proof of Stake.
Ropsten is No Like Rinkeby and Kiln, it’s now thought of deprecated and must be upgraded.look this mailbox For extra info on deprecated schedules, see
consumer launch
This improve requires updating solely the execution layer shoppers. Node operators can proceed to run the present consensus layer consumer launch on Sepolia in the course of the transition.
Word the consumer launch used for Goeri/Prater Merging every thing will assist this improve on Sepolia. So when you have already downloaded the Goerli/Prater merge launch, you need to use the identical model in Sepolia for this improve.
execution layer
Improve specification
The specification for this variation is Paris specification, fork subsequent improve part.
Often Requested Questions
As a node operator, what ought to I do?
By August 16, 2022, it’s essential to improve your execution layer shoppers to one of many above variations. There isn’t a have to improve the consensus layer consumer.
As a staker, what do I have to do?
Validators set to Sepolia are allowed. If he’s at the moment a Sepolia Validator, he should replace his execution layer consumer to one of many above variations by August 16, 2022 on the newest.
When you have not joined the present Sepolia validator set, you do not want to do something presently.
Goerli/Prater and mainnet validators ought to comply with the identical steps when this improve is introduced on their networks.
As an software or device developer, what ought to I do?
Nothing except you’re additionally working node. If that’s the case, please improve your execution layer consumer to one of many above variations by August 16, 2022.
As an Ethereum consumer or Ether proprietor, is there something I have to do?
No. Ethereum mainnet won’t be affected by this improve. No motion is required even when this improve is utilized to mainnet.
thanks very a lot Justin Kron Satoshi Saito for the unique cowl picture and modifications.
