Sui experienced a critical incident on May 28, 2026 affecting Sui Mainnet - Validators and Sui Mainnet - Public RPC Nodes, lasting 2d 2h. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating May 28, 2026, 02:15 PM UTC
We are currently investigating this issue.
- identified May 28, 2026, 02:36 PM UTC
The issue has been identified and a fix is being implemented.
- monitoring May 28, 2026, 07:40 PM UTC
Fix is rolling out to validators
- monitoring May 28, 2026, 08:31 PM UTC
We are continuing to monitor for any further issues.
- monitoring May 28, 2026, 08:32 PM UTC
>2/3 of stake have upgraded to the fix, network is online: https://metrics.sui.io/public-dashboards/4ceb11cc210d4025b122294586961169
- monitoring May 29, 2026, 12:09 PM UTC
We are continuing to monitor for any further issues.
- monitoring May 29, 2026, 03:43 PM UTC
>2/3 of stake have upgraded to the latest fix, network is currently online: https://metrics.sui.io/public-dashboards/4ceb11cc210d4025b122294586961169
- monitoring May 29, 2026, 08:57 PM UTC
Validators are waiting to complete epoch change and only processing system txns
- monitoring May 29, 2026, 09:41 PM UTC
We are continuing to monitor for any further issues.
- monitoring May 30, 2026, 02:32 AM UTC
We have progressed to epoch 1143 - network is currently online with degraded participation: https://metrics.sui.io/public-dashboards/4ceb11cc210d4025b122294586961169
- resolved May 30, 2026, 04:43 PM UTC
Up to 93% participation by stake. We will continue to monitor the network closely, but marking this incident as resolved.