TRON has launched the pre-release of java-tron v4.8.1, dubbed Democritus, on the Nile testnet, initiating a mandatory upgrade process. This update enhances the consensus core, virtual machine, network, event services, and API modules, focusing on improved performance, security, and cross-architecture compatibility. Key features include ARM architecture support, adjustments to the SELFDESTRUCT instruction via TIP-6780, optimized P2P communication, and expanded block receipts and SR vote query interfaces. The upgrade requires on-chain governance votes for new proposals, with mainnet activation contingent on upgrade progress and governance results.