According to Foresight News, Sui Network issued a statement stating that the mainnet has been upgraded to version V1.9.1 and the Sui protocol has been upgraded to version 23. Key points of this upgrade include: enabling protocol configuration flags, using a reputation-based leader election algorithm to improve Narwhal's fault tolerance, setting a bad node pledge threshold for the main network, and implementing structuring for the Sui CLI commands sui client addresses and sui client dynamic-field Output; changed the default logging level of the Sui CLI (Client, Move, Keytool) from info to error, allowing the logging level to be overridden by setting the RUST_LOG environment variable.