This release updates the Flare and Songbird codebase to AvalancheGo v1.14.0 (Granite upgrade).
This release cannot run the Flare or Songbird mainnets. Starting a node with the Flare or Songbird
network ID fails with the error mainnet is not supported. Only the Coston and Coston2 testnets are
supported by this release.
The changes go into effect
- June 11, 2026 at 12 PM UTC for the Coston network,
- June 16, 2026 at 12 PM UTC for the Coston2 network.
Testnets should be updated to this version before these times.
Note:
- The minimum C-chain gas price (base fee floor) is raised to 500 GWei.