#PI $PI Key Timeline (Currently Public Information)
• Q3 2025: Official release of the upgrade preview, announcing the upgrade from Protocol 19 to Protocol 23, and initiating community technical communication.
• Q4 2025: Launch of Linux node version parallel testing, simultaneously developing the underlying Protocol 23.
• Q1 2026: Phased deployment of Protocol 23, with expected multiple planned blockchain service interruptions.
• Q2 2026: Complete full node switch and functionality verification, and start ecological compatibility adaptation work.