After final week’s main six-hour outage, the Sui community has carried out upgrades to its mainnet, deploying model V1.63.3, and upgrading the protocol to model 107.
The Sui Community rolled out protocol upgrades that reportedly deal with the underlying points that will have triggered the outage Cryptopolitan reported final week, which lasted about 6 hours and stalled about $1 billion in transactions.
Upgrades to Sui’s protocol and mainnet enhancements
The upgrades primarily embody fixes to validator consensus points that prevented nodes from reaching settlement on rejected transactions, optimized transaction affirmation paths for higher effectivity and reliability, guaranteeing the power to attain finality immediately and disabling RPC interfaces utilized by validators for transaction signing and submitting aggregated validator signature transactions.
The challenge’s crew has additionally made plans for sooner detection/restoration mechanisms, higher tooling for its operators, and expanded testing of the consensus engine. The crew’s focus will stay on enhancing resilience whereas preserving Sui’s strengths.
What occurred to the Sui Community?
The Sui Community suffered a significant outage on January 14, which halted transactions and froze over $1 billion in worth on the community.
The Sui Basis acknowledged the issue at 3:24 pm UTC on X amid reassurances to the customers that core builders had been engaged on a repair.
“The Sui community is now again and totally operational. Transactions are flowing usually. In the event you proceed to expertise points, please refresh your app or browser window. Thanks to your persistence,” the Basis wrote on X, promising a full incident report within the days that adopted.
The crew began wanting into the issue about half-hour earlier than they made the announcement, in keeping with the Basis. Nevertheless, the community was not restored for almost 6 hours afterward.
The incident was reportedly brought on by what the crew referred to as a consensus outage, which is a technical problem that prevented the blockchain from confirming transactions.
It’s the community’s second main outage since its origin
The outage from final week was the second main one the Sui community has confronted because it began working in Could 2023. The primary actual one occurred in November 2024 and was linked to challenges that had accrued over time.
The autopsy the crew later shared recognized the basis trigger as an inner divergence in validator consensus processing, which they are saying was triggered by an edge-case bug within the consensus commit logic.
Notably, it was not brought on by an exploit, community congestion, or timing synchronization points, and there was no rollback, nor had been person funds misplaced within the means of fixing the difficulty, because of the community’s security mechanism, which labored because it was designed.
It isn’t the primary high-speed blockchain to face these struggles. Networks like Solana have confronted comparable points prior to now, although Solana has since left these behind and has not had any outages in multiple 12 months. That is thanks partly to emergency updates which have allowed validators to speak extra successfully and deal with crucial points quickly.



