Granite Upgrade (Avalanche)

[navillanueva]

Hey team,

The upcoming Granite release will include some technical changes that could possibly affect you guys:

Two new headers being introduced as part of ACP-226 (Dynamic Minimum Block Times) → Enables subsecond block times and improves network responsiveness.
"timestampMilliseconds" (uint64)
"minDelayExcess" (uint64)

New struct being added as part of ACP-181:
Epoch struct

Three new API methods have been added:
GetProposedHeight
GetCurrentEpoch
GetAllValidatorsAt (pending merge)

If your system uses JSON parsing or interacts with these APIs, please ensure your implementation can safely handle new or extended fields and methods.

Granite Release Timeline
Fuji activation: Oct 29th
Mainnet activation: Nov 19th

Let us know if you spot any issues or have questions — we’ll coordinate support as needed.
Thanks!