According to the official announcement of Base, Base has launched a number of new technologies aimed at improving on-chain transaction speed, scalability and user experience. Among them, Flashblocks technology has been launched on the Base Sepolia test network, shortening the block confirmation time from 2 seconds to 200 milliseconds, becoming the fastest EVM chain. In addition, Base has also launched Base Appchains (L3 chain), providing exclusive block space for high-traffic applications and improving scalability. At the same time, Base introduced Smart Wallet Sub Accounts to optimize user experience, reduce transaction signatures, and provide a safer account management method. Base plans to push Flashblocks and Sub Accounts to the mainnet in Q2.