Goerli/Prater Merge Announcement

The Goerli/Prater Merge: A Milestone in Ethereum's Proof-of-Stake Transition

As the Ethereum ecosystem continues to evolve, the Goerli/Prater merge marks a significant milestone in the transition to proof-of-stake (PoS). This upgrade, which combines the Goerli and Prater testnets, will pave the way for the eventual mainnet transition. In this article, we'll delve into the details of the merge, its implications, and what it means for the Ethereum community.

Background: The Path to Proof-of-Stake

After years of development, Ethereum is now well into the final testing stage for its proof-of-stake transition. The Merge is a critical step towards a more energy-efficient and scalable network. By transitioning from proof-of-work (PoW) to PoS, Ethereum aims to reduce its carbon footprint, increase transaction throughput, and improve overall network security.

The Merge: A Two-Step Process

The Merge is a two-step process, consisting of the Bellatrix upgrade on the consensus layer and the Paris upgrade on the execution layer. The Bellatrix upgrade will trigger the transition from PoW to PoS on the Beacon Chain, while the Paris upgrade will enable the execution layer to run on top of the Beacon Chain.

Timing: When to Expect the Merge

The Bellatrix upgrade is scheduled for epoch 112260 on the Prater Beacon Chain, expected at 12:24 PM UTC on August 4, 2022. The Paris upgrade will be triggered by reaching a Terminal Total Difficulty (TTD) of 10790000 on Goerli, expected between August 6-12, 2022.

Client Releases: Preparing for the Merge

To ensure a smooth transition, clients must release feature-complete updates that support the Merge. The following clients support the Merge across the Goerli & Prater testnets:

• Consensus Layer:
  • Lighthouse (v2.4.0)
  • Lodestar (v0.41.0)
  • Nimbus (v22.7.0)
  • Prysm (v2.1.4-rc.0)
  • Teku (v22.7.0)
• Execution Layer:
  • Besu (22.7.0-RC3)
  • Erigon (2022.07.04-alpha)
  • go-ethereum (geth) (v1.10.21)
  • Nethermind (1.13.5)

Upgrade Specifications: Understanding the Technical Details

The consensus-critical changes for the Merge are specified in two places:

• The consensus layer changes, under the bellatrix directory of the consensus-specs repository
• The execution layer changes, under the Paris spec in the execution-specs repository

Additionally, two other specifications cover how the consensus and execution layer clients interact:

• The Engine API, specified in the execution-apis repository, is used for communication between the consensus and execution layers
• Optimistic Sync, specified in the sync folder of the consensus-specs repository, is used by the consensus layer to import blocks as the execution layer client is syncing and to provide a partial view of the head of the chain from the former to the latter

FAQ: Addressing Common Questions

As a node operator, what should I do?

• Post-merge, an Ethereum full node will combine a consensus layer (CL) client, which runs the proof-of-stake Beacon Chain, and an execution layer (EL) client, which manages the user-state and runs the computations associated with transactions.

As a staker, what do I need to do?

• The Goerli/Prater Merge is your last opportunity to ensure that your validators are correctly configured before the mainnet transition. Running through the transition now is strongly recommended to avoid any unexpected issues on mainnet.

As an application or tooling developer, what should I do?

• With The Merge going live on Goerli, now is your last chance to ensure that your product works as expected through the proof-of-stake transition and in a post-merge context.

As an Ethereum user or Ether holder, is there anything I need to do?

• No. The Ethereum mainnet is not affected by this testnet. Subsequent announcements will be made on this blog before mainnet's transition.

As a miner, is there anything I need to do?

• No. If you are mining on the Ethereum mainnet, you should be aware that the network will operate entirely under proof-of-stake after The Merge. At that point, mining will no longer be possible on the network.

Conclusion: The Future of Ethereum

The Goerli/Prater merge marks a significant milestone in Ethereum's transition to proof-of-stake. As the network continues to evolve, it's essential to stay informed about the latest developments and updates. By understanding the technical details and implications of the Merge, you'll be better equipped to navigate the future of Ethereum and take advantage of its growing capabilities.

Forward-Looking Thoughts: What's Next for Ethereum?

As the Merge completes, Ethereum will continue to evolve and improve. With the transition to proof-of-stake, the network will become more energy-efficient, scalable, and secure. The future of Ethereum holds much promise, and it's exciting to think about the possibilities that lie ahead.

• The Ethereum community will continue to work together to improve the network and its capabilities.
• New use cases and applications will emerge, taking advantage of the network's growing capabilities.
• The transition to proof-of-stake will pave the way for further upgrades and improvements, such as sharding and layer 2 scaling solutions.

As we look to the future, it's essential to stay informed and engaged with the Ethereum community. By working together, we can build a more secure, scalable, and accessible network that benefits everyone.

Source: https://blog.ethereum.org/en/2022/07/27/goerli-prater-merge-announcement