No, EIP- 1559' s proposal to withdraw from changing the current main network fee of ETH 1.0 is particularly concerned, because objectively, this update will bring deflationary effect to the infinitely distributed ETH. The proposal of EIP- 1559 will improve the existing fee mechanism, and the basic fees paid by users will no longer be pocketed by miners, but will be destroyed, which will objectively bring about the deflationary effect of ETH; EIP-3529 proposal supports contract deployers to actively clean up contracts and get gas refunds, which will reduce network congestion and improve network stability. In addition, EIP-354 1 will reject new addresses starting with 0xEF bytes, laying the foundation for future upgrades; EIP-3554 suggested that the difficulty bomb should be delayed until 202165438+February and quit in 2020. The "London upgrade" of 1. Ethereum is not only a transitional solution to the pain points such as high cost and frequent congestion in the current Ethereum 1.0 network, but also a preparation for upgrading Ethereum to 2.0 in the future. The combination of Ethereum 1.0 and 2.0 will mark the end of PoW mining, and the upper limit of the combination will be opened not earlier than the difficulty bomb, but not later than the slicing stage. According to the existing official information channels, the difficulty bomb will be started in June 5438+February this year, and the fragmentation stage will be started in the middle of next year. Therefore, on the premise that all plans are implemented as scheduled, the PoW mechanism will be withdrawn from the historical stage in the first half of 2022. 20 15 began to study the transformation from ethereum to POS, and 20 18 formally put forward the 2.0 scheme. Later, progress was slow. Until the outbreak of various defi projects in 2020, the cost of natural gas in the industrial chain once rose from 20-30gwei to over 500gwei. The ecological experience on the chain is very poor. Finally, he had to upgrade (phase 0) to start eth2 at the end of 2020. Since eth2.0 has been discussed for a long time, there are many analysis articles about the upgrade cycle. 2. It is generally believed that the upgrade will take about 2-3 years, because POS and POW will test whether POS is really safe and reliable in parallel for half a year to one year. Double strands will not fuse before 2022-2023 to completely end POW and maintain POS. However, the announcement of sudden acceleration surprised everyone, especially the miners. After all, people who hold coins and mining machines have different mentality. Miners are very sensitive to POS. According to the announcement issued by spark yesterday, they asked the official of Ethereum to clarify the upgrade expectation again. Don't even send short sentences to non-core developers, which will lead to many misunderstandings. People always think that upgrading eth20 is technically complicated and huge, but now my explanation is that everyone overestimates the complexity of upgrading. I estimate that the official team has basically grasped the core points. After all, ETH is not the first crab to eat POS consensus. There are many examples for reference. In the past, the process of upgrading was very slow. In fact, the authorities have been accommodating and taking care of the interests of miners. They didn't start upgrading until last year, and then vaguely announced the upgrade plan and timetable. This year, the situation is not optimistic. Other family ecological chains are developing rapidly, in full swing, with low handling fees, fast transaction speed and poor general experience.