🔥BREAKING: Pi Network Begins Protocol 28 Upgrade Following the successful Protocol 27 Mainnet upgrade, Pi Network has upgraded Testnet to Protocol 28. The update improves transaction data latency, enables developers to batch-upgrade smart contracts, and adds more secure ways to modify stored application data. Node operators must upgrade by October 13, with Protocol 28 scheduled for Mainnet on October 16, 2026. 🚀