According to official sources, the BTFS protocol v4.0 mainnet upgrade is now complete and fully enabled. This upgrade focuses on a network reliability enhancement solution based on storage provider-exclusive nodes (BTIP-89), a metadata transparency management mechanism using smart contract technology (BTIP-90), and a distributed governance system that supports community autonomy (BTIP-91). These technical improvements further optimize the infrastructure performance of the BTFS network and enhance the system's security and scalability. As an important advancement in the field of decentralized storage, BTFS will continue to promote technological innovation and provide support for the construction of Web3.0 data storage infrastructure. [ChainCatcher]