The most significant upgrade to the Helium Blockchain since mainnet will vastly improve scalability, stability, and security. — Back in January of this year, the Helium community approved HIP-25, which proposed moving block production from hotspots to a group of validators. Since then, the Helium Network has grown by an astonishing 400%, including significant expansion in Southeast Asia. This week, with the activation of validators, the network overcomes…