ChainCatcher news, according to the official announcement from Base, Base has launched several new technologies aimed at enhancing on-chain transaction speed, scalability, and user experience. Among them, the Flashblocks technology has gone live on the Base Sepolia testnet, reducing block confirmation time from 2 seconds to 200 milliseconds, making it the fastest EVM chain.In addition, Base has also introduced Base Appchains (L3 chains), providing dedicated block space for high-traffic applications to improve scalability. At the same time, Base has introduced Smart Wallet Sub Accounts to optimize user experience, reduce the number of transaction signatures, and provide a more secure account management method. Base plans to launch Flashblocks and Sub Accounts on the mainnet in Q2.