Vitalik proposed upgrading Ethereum's finality mechanism, with Minimmit potentially replacing Casper FFG.

CoinFeed reported on March 7th that Vitalik Buterin posted on the X platform, proposing to replace the current finality component Casper FFG with the new Minimmit in discussions about the Ethereum consensus mechanism. He argues that Casper FFG uses a two-round finality mechanism (validators need to sign twice to complete "proof" and "final confirmation"), while Minimmit only requires one round of signing to achieve finality. As a trade-off, Minimmit's fault tolerance threshold will decrease from 33% in Casper FFG to approximately 17%. Despite the reduced fault tolerance, Minimmit is more likely to lead the network into a state of "multi-chain competition rather than erroneous final confirmation" under various attack or client vulnerability scenarios, a situation that is easier to recover from through community coordination.