Sui Foundation says ‘major upgrade’ fixed bugs behind three outages
Sui says a major upgrade fixed bugs behind three outages that left the network down for over 15 hours across two days.
Intelligence analysis by GPT-5.4 Mini
Sui Foundation says it pushed a major upgrade after three recent outages, tracing the failures to bugs in its 1.72 release and an interim fix. The network is back online, and the foundation says user funds were not at risk.
Sui had a big software problem that made its network stop working three times. The people running it say they found the broken parts and fixed them with a major upgrade.
Think of it like a train system where one bad signal makes several trains stop. The fix is meant to keep that from happening again and to make the system better at handling future mistakes.
The network is working again, and Sui says no one’s money was in danger. But the stops made some people less confident, and the token price fell after the trouble.
Analysis
What happened
The Sui Foundation says a “major upgrade” has fixed the problems behind three recent outages on the Sui network. According to the foundation, the first two outages came from crash bugs introduced in software version 1.72, while a temporary fix used to restore service led to the third halt.
The outages played out over two days. One incident on Thursday lasted nearly six hours, and two more followed on Friday, lasting eight hours and 25 minutes and then 43 minutes. The network’s uptime dashboard showed all systems as operational by Monday.
Root cause and response
Sui said the bugs affected gas charging. In the foundation’s description, the network could charge funds before canceling transactions that lacked sufficient balances, which then created negative balances and caused the system to crash. The foundation also said the interim fix had a known low-probability risk of causing another halt.
In its Sunday blog post, the foundation said validators had addressed the known issues tied to both the original gas-charging bug and a randomness-state bug. It added that network activity had resumed and that committed transactions were not reverted when the chain came back online.
Broader context
The post also pointed to areas for improvement, including better failure containment and stronger end-of-epoch resilience. It said the team wants more investment in AI agents, which were used to help diagnose problems, query validator logs, and assemble metrics during the incident.
Sui has dealt with outages before, including a January incident that took the network offline for more than six hours and a November 2024 crash-loop event that lasted about 2.5 hours. The token also weakened after the outages, falling from about 99 cents on Thursday to roughly 88 cents on Monday, according to CoinGecko. The network remains a large DeFi venue, with DefiLlama listing it as the 13th-largest blockchain by total value locked at $519 million.
Key points
- Sui Foundation says a major upgrade fixed the bugs behind three recent network outages.
- The foundation blamed the first two outages on bugs introduced in version 1.72 and the third on an interim fix.
- Sui says user funds were not at risk and committed transactions were not reverted when the network resumed.
- The outages lasted more than 15 hours across two days and coincided with a decline in the SUI token price.
- The team said it wants better failure containment, stronger epoch resilience, and more AI-agent support for debugging.
