According to Foresight News, lightweight blockchain protocol Mina Protocol has released the latest news on Testworld Mission 2.0 and the progress of the Mina mainnet's major upgrade. Mina's development team, O(1) Labs, has released the first Berkeley candidate version RC1, which incorporates all fixes and discoveries from the previous Testworld 2.0 accelerated version. The preparations for Track 4, aimed at replicating processes in a test network environment and designing upgrade mechanisms, are still ongoing. Closed testing with exchanges and custodial institutions has begun and will continue throughout Track 4.