Notice | etheric fang provids "London" upgrade announcements

London Mainnet Upgrade Announcement and Associated Code Changes

原文作者：Tim Beiko，Ethereum Blog

英 文 版 : ETH Chinese station, ethereum enthusiasts

Editor's note:Thank you to ETH Chinese for translating the ethereum Foundation's & NBSP; "London" Upgrade announcements and version update announcements from the Geth client team. To be added:

1 .  原公告发布于 7 月 15 日，而 7 月 21 日 Ropsten 测试网上出现了共识事故，因此，本文内建议的客户端版本已经过时，运行节点的朋友应该获得自己所用客户端的最新版本。

2 .  以 13.5 的平均出块时间计算，「伦敦」升级将在北京时间 8 月 5 日晚上 7 时许激活。

3 .  以太坊区块的 Gas Limit 是出块节点在本地设置参数博弈出来的，设置低于/高于 当前大小的值即表示支持 减小/增大 区块，并会在自己所出的区块中反映出来。在 EIP-1559 通过之后，Base Fee 的调整将总是以 50% 的区块利用率为目标，因此，如果你作为出块节点，你认为合适的单块 Gas 消耗量是 100，就应该在本地把 gas limit 设为 200，以此类推。公告和 Geth 团队建议的数值仅有说明意义。不论节点具体设置了什么值，都不会因此进入另一个分叉。

By:In addition to the Announcement of the London mainnet upgrade, ECN also translated the code changes in Geth client V1.10.5 regarding the London upgrade that different actors should be aware of.

Client Version

To be compatible with the London upgrade, the node operator will need to upgrade the version of the client it is running on. Each client version listed below supports the London upgrade to the Ethereum mainnet.Note: The following versions are different from the client versions listed in the London Test Network Bulletin. The Client version of the Test network does not support the client version of the Main network London upgrade.

Pay attention toThe OpenEthereum client has been upgraded and deprecated. The OE team is working with Erigon to provide a smooth transition path for users. Click here for more information.

Attention miners: The London upgrade will change the way the network handles gas limit targets. See "What do I need to do as a miner?" below. For details.

London EIPs

The following EIPs are the contents of the London upgrade:

 .   EIP-1559：ETH 1.0 费用市场变更

 .   EIP-3198：BASEFEE 操作码

 .   EIP-3529：减少 gas 返还

 .   EIP-3541：拒绝以 0xEF 字节开头的新地址

 .   EIP-3554：难度炸弹延迟至 2021 年 12 月

Ethereum Cat Herders has posted a blog post discussing the details of these EIPs.

It's worth noting that while IP-1559 is backward compatible with the current transaction format, it introduces changes to the block header, adds new transaction types, provides a new JSON RPC endpoint, and changes the client's behavior in several ways (mining, trading pools, and so on). Familiarity with this EIP is strongly recommended for each project. A more extensive list of materials related to IP-1559 can be found here.

Find a bug bounty

In order to bring more attention to the upcoming London upgrade, the bonus for all Bugs related to The London upgrade will be doubled until the upgrade begins. Examples of how you can claim a double bounty are cross-client consensus issues between these clients: Geth, Besu, Nethermind, OpenEthereum, and Erigon. Full details about the bug bounty scope and limits, please refer to: https://bounty.ethereum.org/#rules.

FAQ

Q:Is there anything I can do as an Ethereum user or ETH holder?

If you use an exchange (like Coinbase, Kraken, or Binance) or a web wallet service (like Metamask, MyCrypto, or MyEtherWallet), With mobile Wallet services (like Coinbase Wallet, Status.im, or Trust Wallet) or hardware wallets (like Ledger, Trezor, or KeepKey), you don't have to do anything, Unless your exchange or wallet service tells you to take additional steps. If you're running your own Ethereum node, you need to upgrade your node. See below "What do I need to do as a non-mining node?" Part.

Q:What do I need to do as a non-mining node?

Download the latest version of the Ethereum client, as listed in the table above.

Q:What should I do as a miner?

First, download the latest version of your Ethereum client.Then you need to manually set the gas limit target to double the current one.This is because once the London upgrade is deployed, the block size will double, while IP-1559 will remain approximately 50% full. This can be done via JSON-RPC on any client that provides mainnetwork-compatible mining, without restarting your node.

For example, if you set the block size to 15m gas before the London upgrade, you will need to set the gas limit to 30m to maintain a consistent average number of transactions per block.If you don't modify the gas limit target in block 12 965 000, you will start reducing your block size across the network.The following table provides each client-specific API that you will need to update your Gas limit target.

Note: Nethermind, Erigon and EthereumJS do not currently support mining on the Ethereum mainnet.

Q:What if I am a miner or node runner and not involved in the upgrade?

If you are using an Ethereum client but are not upgrading to the latest version (listed above), your client will synchronize the pre-fork blockchain data after the upgrade. You will be stuck on an incompatible chain that follows the old rules and will not be able to send ETH or operate on the upgraded Ethereum network.

Q:What does network upgrade mean on Ethereum?

A network upgrade means a change in ethereum's underlying protocol, creating new rules to improve the system. The decentralized nature of the blockchain system makes it harder to upgrade the network. A smooth upgrade to the blockchain network requires collaboration and communication with the community and various Ethereum client developers to make the transition smooth.

Q:What happens during the network upgrade process?

When the community reaches a consensus on what changes need to be incorporated into the upgrade, these changes to the protocol are written into the various Ethereum clients, such as Geth, Erigon, Besu, and Nethermind. Protocol changes are initiated at a specific block height. Any nodes that do not upgrade to the new rules will be abandoned on the old chain, and the old chain will keep the previous rules.

Q:Why "London"?

After the Istanbul upgrade, we ran out of names for the network upgrade. Someone suggested we name it after the city where Devcon was held, so we did. Berlin was the city that hosted Devcon 0, and the next upgrade will be the city that hosted Devcon 1 -- London.

Thank you

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