Pi Network's Protocol 22 upgrade deadline is set for April 27, requiring all Mainnet nodes to update or face disconnection. Currently trading at $0.1709, PI has seen a 2.27% increase, but faces resistance at $0.1815 and $0.1877, which have capped rallies since March. The upgrade is crucial for maintaining network connectivity and infrastructure readiness.The network's recent developments include the launch of a subscription smart contract on Testnet on April 17, with external audits underway. This upgrade is a significant test of node operator activity, with the outcome expected to be visible on-chain shortly after the deadline. PI's price action remains within a descending channel, with key resistance and support levels at $0.1815, $0.1877, $0.1500, and $0.1370.