Affected components
Updates
Resolved
Fully resolved
Tue, Oct 14, 2025, 10:20 PM
Monitoring
We applied a mitigation in place and all the testnets have seen recovery. We keep the situation monitored this full fix upstream from Arbitrum.
Tue, Oct 14, 2025, 06:36 PM(3 hours earlier)
Identified
The Arbitrum Sepolia RPCs are experiencing stalled finalized and safe heads. We are investigating but should be related to the Fusaka upgrade. We are testing a mitigation to restore operations. This impacts rollups settling on Arbitrum Sepolia.
Tue, Oct 14, 2025, 05:20 PM(1 hour earlier)