Confirmation: Mainnet Protocol Switched to v27
OrbitWatch's Horizon API monitoring detected:
The Mainnet protocol_version has officially switched to 27.
The switch occurred at ledger sequence 28848647, approximately yesterday (9/22).
You can verify this directly on the Block Explorer: 👉 blockexplorer.minepi.com
Full Timeline of This Upgrade
8/20～8/21 Testnet 1 switched to v27
8/21 Official announcement of v27 content on X and in-app
9/8～9/9 Node software automatically updated to v27 (Pi Desktop 0.6.3)
9/15 Official Node Deadline
9/22 Mainnet protocol_version officially switched to v27 ✓
A comparison with previous upgrades:
V22 Node Deadline 4/27 → Mainnet Switch 4/30 (3 days difference)
V23 Node Deadline 5/19 → Mainnet Switch 5/22 (3 days difference)
V24 Node Deadline 6/2 → Mainnet Switch 6/5 (3 days difference)
V25 Node Deadline 6/18 → Mainnet Switch 7/22 (34 days difference)
V26 Node Deadline 8/11 → Mainnet Switch 8/14 (3 days difference)
V27 Node Deadline 9/15 → Mainnet Switch 9/22 (7 days difference)
The gap for V27 is slightly longer than the "3-day" pattern of V22-V24 and V26, but significantly shorter than the 34 days for V25.
What v27 Brings
The official announcement on 8/21 detailed v27's content: a more flexible and secure smart contract authentication mechanism, allowing accounts and applications to authorize transactions in more advanced ways. This is a continuation of Pi's ongoing work to expand smart contract capabilities.
Recent third-party media reports have additionally mentioned technical directions such as AMM liquidity pools and integrated order book DEXs. However, no independent, official technical explanation from Pi Network has been found for these aspects yet, and they remain under continuous monitoring.
Only One Last Step in the Upgrade Path
The entire upgrade sequence from V19 to V27 has been completed. The official team previously referred to V27 as the "final planned upgrade." However, the node upgrade path later showed a step from 27.1 → 28.x, indicating that the official protocol planning has not entirely stopped. The specific content of the next round is currently TBD.
OrbitWatch's Ongoing Monitoring
We will continue to monitor whether the official team further releases formal explanations regarding AMM/DEX, as well as any new developments for V28.
Further Reading → Nodes have upgraded to v27, but Testnet 2 and Mainnet are still pending → V27 Official Deadline Confirmed: 9/15, Node Documentation Updated → Pi Network Protocol Upgrade Mechanism: From Node Deadline to Mainnet Switch
Data sources: Pi Network Horizon API (api.mainnet.minepi.com), Pi Network Block Explorer, @PiCoreTeam official X account (8/21 announcement). All analysis does not constitute investment advice. OrbitWatch is an independent Pi Network ecosystem observatory and is not affiliated with the official Pi Network team.
Key Points
- •The Pi Network Mainnet protocol has officially upgraded to v27 as of September 22nd, at ledger sequence 28848647.
- •V27 enhances smart contract authentication, making it more flexible and secure for accounts and applications, continuing Pi's smart contract expansion.
- •While V27 was previously termed the "final planned upgrade," future protocol developments (e.g., 27.1 → 28.x) are anticipated, with details yet to be announced.