According to official sources, the latest version v2.19.0 of the customizable blockchain infrastructure NULS mainnet was released on February 19, 2024 at 1:00 (UTC+8). The new protocol will take effect after 80% of the mainnet nodes have completed the update. It is reported that the new version will optimize chain management functions and command line processing logic, as well as optimize NULS blockchain smart contract execution logic. NULS stated that this upgrade is a mandatory update. Node owners must update all nodes (including regular nodes and consensus nodes). After the new protocol takes effect, node owners who fail to complete the update will receive reminders until the node is cancelled.