Foresight News reported that confidential computing network Arcium has announced the launch of the second phase of its public testnet. This phase advances privacy through technological progress and ecosystem development, with improvements in performance and accelerated demonstration of applications. In addition, node access is now open, allowing external operators to run nodes. At the same time, Umbra Beta is also open, enabling users to try Solana's stealth mode. For developers, the second phase means a stronger foundation, faster computing capabilities, more composable applications, and clearer documentation.