According to Foresight News, the lightweight blockchain protocol Mina Protocol announced the latest news about Testworld Mission 2.0 and the progress of the major upgrade of the Mina mainnet: Mina development team O(1) Labs released the first Berkeley candidate version RC1, which merged all the fixes and findings of the previous Testworld 2.0 accelerated version; preparations for Track 4, which aims to test the replication process in the network environment and design the upgrade mechanism, are still continuing; closed testing with exchanges and custodians has begun and will run throughout Track 4.