Current answer
Langfuse experienced a minor incident: Delayed Ingestion for non v4 SDKs. Resolved on Sep 14, 2026.
The notice publication date does not establish the outage start. Provider resolved: .
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Provider notice timeline
Affected Components
Ingestion API
Incident Timeline
Resolved
The incident has been resolved.
Sep 14, 2026 at 6:10 AM UTC
Monitoring
We're making consistent progress in our backlog and are currently seeing delays of about 60 minutes.
Sep 14, 2026 at 5:14 AM UTC
Investigating
We considerably increased throughput of the batch job to write data into v4 data model. We are currently catching up processing data.
Sep 14, 2026 at 3:52 AM UTC
Investigating
We currently experience an ingestion delay of old SDKs by 3 hours. This is due to performance issues in our batch job which moves data into the v4 data model (https://langfuse.com/changelog/2026-08-17-langfuse-v4).
We currently work on improving the batch job. All v4 compatible SDKs are not impacted by this. Upgrading SDKs is recommended.
We currently work on improving the batch job. All v4 compatible SDKs are not impacted by this. Upgrading SDKs is recommended.
Sep 14, 2026 at 2:51 AM UTC
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