[Standard] Fuel - Mainnet and Testnet - Upgrade to v0.48.3

Scheduled for Sep 23, 11:00 - 15:00 UTC

Scheduled

We are upgrading our Fuel Mainnet and Testnet infrastructure to fuel-core v0.48.3. This release includes operational improvements to node readiness detection, performance enhancements to the PoA service with better connection handling, and fixes to peer penalization logic to improve block synchronization reliability.

During the maintenance window, brief interruptions to RPC availability may occur.

RPC Changes:
- GraphQL subscriptions — Pooled hyper client reuse has been implemented for improved connection efficiency and performance.

https://github.com/FuelLabs/fuel-core/releases/tag/v0.48.3

Posted Sep 09, 2026 - 18:09 UTC

This scheduled maintenance affects: Fuel (Beta) (Mainnet — GraphQL API, Sepolia — GraphQL API).