Pi Network Completes Protocol 23 Docker Upgrade Across 421,000+ Mainnet Nodes on May 19-20

According to Dr. Chengdiao Fan and the Pi Core Team, Pi Network successfully completed Protocol 23 Docker upgrade across 421,000+ active mainnet nodes on May 19-20, 2026. The simultaneous migration upgraded four infrastructure layers: Ubuntu from 20.04 to 24.04 LTS, PostgreSQL from version 12 to 16, Stellar Core to version 23.0.1, and the API layer to version 23.0.0.

The upgrade activates Soroban smart contracts on Pi's mainnet for the first time, enabling developers to deploy decentralized applications and programmable financial instruments. Protocol 23 also enables parallel transaction processing, introduces in-memory Wasm module caching, and lays groundwork for native DEX infrastructure and real-world asset tokenization.