Sui Mainnet Halts After 1.72 Release Expose Gas Charging Edge Cases
Sui's mainnet experienced three separate outages on May 28-29 following the 1.72 network upgrade, which exposed edge cases in gas charging and validator restart logic. The Sui Foundation said the issues have been resolved, network activity has resumed, and no user funds were at risk.
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What Happened
Sui mainnet went offline three separate times across May 28 and May 29 after the network deployed version 1.72, according to a postmortem from the Sui Foundation. The outages stemmed from previously undetected edge cases in the upgrade's gas charging and validator restart logic, the foundation said in a public report on the incident.
Recovery and Impact Assessment
The Sui Foundation said all issues have been resolved and network activity has resumed normal operations. The foundation stated that "no user funds were at risk" during any of the three halts, and validators have restarted without data loss. The specific technical details of the gas charging bug and validator restart logic failure were not disclosed in the initial postmortem.
Next Steps
The foundation did not announce a mandatory upgrade timeline or additional safeguards to prevent similar edge cases in future releases. Sui operates as a delegated proof-of-stake network with a fixed validator set, meaning the network required validator coordination to restart each time.
Why It Matters
For Traders
Mainnet downtime and restart coordination create uncertainty for spot and derivatives positions; watch for validator communication channels for future upgrade timelines.
For Investors
Three mainnet halts in 48 hours following a routine upgrade raises questions about Sui's testing protocols and the robustness of its upgrade process.
For Builders
Developers deploying on Sui should review gas charging behavior and validator state assumptions to ensure contract logic is resilient to similar edge cases.
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