AvalancheGo v1.15.0 Helicon Mainnet release announced

September 9, 2026

Avalanche Developers released AvalancheGo v1.15.0, the Helicon Mainnet node client, with an upgrade window requiring validators and operators to upgrade before activation at 11 AM ET (3 PM UTC) on the scheduled September date. The release is the latest mainnet node client for the Avalanche network, and operators are advised to update ahead of activation.

Sources

RT @AvaxDevelopers: AvalancheGo v1.15.0, the Helicon Mainnet release, is out! Upgrade before activation: 11 AM ET (3 PM UTC) on September…x.com ↗

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AvalancheGo v1.15.0 Helicon Mainnet release announced — Outposts