Sui Network Outage: Mainnet Suffers Double Failure After Software Update
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In the high-stakes arena of Layer-1 blockchains, network reliability is the ultimate currency. When a blockchain promises sub-second finality and institutional-grade scalability, any pause in block production can trigger widespread panic. Between May 28 and May 29, 2026, the Web3 community witnessed a dramatic system failure as the Sui mainnet suffered three consecutive halts in a span of just 48 hours. This devastating Sui network outage wave temporarily froze over $1 billion in on-chain assets, paralyzed decentralized applications (dApps), and sent its native token (SUI) tumbling by roughly 8% from $0.99 to a low of $0.90.
The Genesis of the Crisis: The Version 1.72 Software Upgrade
The origin of this multi-day crisis lies in the rollout of Sui’s version 1.72 software upgrade. Under normal conditions, Sui’s object-centric model, powered by the Move programming language, enables high parallel throughput by treating assets and data as independent objects. Unlike account-based EVM networks, Sui can execute transactions simultaneously without needing to lock the entire state of the blockchain. However, the introduction of a new
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