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Sepolia Is the First Ethereum Testnet to Get a Post-Merge Upgrade
Upgrades to Ethereum test networks – even small ones – are important steps in ensuring that the new proof-of-stake protocol runs smoothly.
Yazan Margaux Nijkerk
Sepolia, an Ethereum test network (testnet) chain had a post-merge update on Aug. 22 at 03:01 UTC – the first of its kind on any of the Ethereum proof-of-stake testnets. The update was originally slated for Aug. 17, but was postponed for four days to allow some offline validators to rejoin the network.
While the effects of the upgrade aren’t of the “user-facing” variety, the upgrade itself is worth understanding from a technical point of view, as it has implications for the future success of Ethereum's main blockchain after it transitions from a proof-of-work to a proof-of stake consensus protocol.
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In preparation for the Ethereum Merge forecast for mid-September, a series of test networks (testnets) have run through the merge process and transitioned from proof-of-work to proof-of-stake. One of these testnets, Sepolia, successfully merged with its proof-of-stake beacon chain on July 6.
Read more: Merge Testing on Ethereum: What Is It and Why Does It Matter?
The Sepolia testnet went through an upgrade on its Execution Layer (EL), at block 1,735,371. This caused EL clients to disconnect from any peers that did not transition to proof-of-stake, a process which helps maintain a healthy network for Ethereum. The Ethereum Foundation noted that the upgrade will not add additional functionality to the chain.
Parithosh Jayanthi, a DevOps engineer at the Ethereum Foundation, told CoinDesk that “the upgrade is there just to clear up any dead nodes in the system. This is sort of a cleanup, and we wouldn’t really expect to see any change.” Jayanthi also noted that this is something they have to do every time a network merges.
Another week, another testnet upgrade 😁
— timbeiko.eth ☀️ (@TimBeiko) August 3, 2022
Sepolia, which merged a few weeks ago, now needs to undergo a simple post-merge upgrade to disconnect non-PoS peers. The upgrade is scheduled for August 17, and only ELs need to be updated. More info here 👇🏻https://t.co/4HwxundyTG
The Ropsten testnet did not upgrade because that chain is considered to be deprecated. On the Aug. 18 All Core Developers call, Ethereum developers discussed deprecating the Kiln testnet as well, ahead of the Merge (a bit earlier than anticipated), given that not many transactions are taking place on it, and participants have moved most of their testing over to the Goerli tesnet. Goerli, which transitioned to proof-of-stake last week, will still see network upgrades even after the Merge on Ethereum’s mainnet.
Alex Stokes, a researcher working on the Merge with the Ethereum Foundation, told CoinDesk that the upgrade isn’t that significant but it can be used as an identifier to help with peer discovery, or finding other nodes in the network. He also said that, ultimately, developers just want the upgrade to go well. They will “do something similar on other networks, but ultimately it will have similarly low fanfare.”
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El Salvador Partners with Elon Musk’s Grok in AI-Powered Education for 1M Students
The nation that first adopted bitcoin as legal tender is looking to pioneer AI-powered education in 5,000 Salvadoran schools with xAI’s Grok
Что нужно знать:
- El Salvador is partnering with Elon Musk's xAI to launch the world's first national AI-powered public education system.
- The initiative will deploy xAI's Grok chatbot to over 5,000 public schools, benefiting more than a million students and thousands of teachers.
- The project aims to create new AI datasets and frameworks for education, focusing on local context and responsible AI use.
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