LangChain experienced a minor incident on April 28, 2026 affecting LangSmith Application, lasting —. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Apr 28, 2026, 08:44 AM UTC
Status: Investigating We're investigating an issue where the annotation queue page may load very slowly or even freeze the UI after clicking the View Run button. Affected components LangSmith Application (Degraded performance)
- identified Apr 28, 2026, 11:25 AM UTC
Status: Identified The cause of the issue has been identified and the team is currently working on a fix. Affected components LangSmith Application (Degraded performance)
- resolved Apr 28, 2026, 02:25 PM UTC
Status: Resolved This incident has been resolved. Annotation queues are once again fully accessible in the US LangSmith UI. Please let us know at [email protected] if you're still experiencing issues. Affected components LangSmith Application (Operational)