# Langfuse: Longer v3 -> v4 propagation delay

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-08-19 10:30 UTC · Resolved: 2026-08-19 15:10 UTC · Duration: 4.7 h
- Updates: 3 · Affected components: Ingestion API
- [Vendor status page: https://status.langfuse.com/incidents/01M0D0CCF6N91A79YYMFBGB9WJ](https://status.langfuse.com/incidents/01M0D0CCF6N91A79YYMFBGB9WJ)
- [Company: Langfuse](https://rewindex.com/company/langfuse.md)

## Timeline of updates

- **monitoring** 2026-08-19 10:30 UTC: We have scaled our database infrastructure to match the throughput demand
- **monitoring** 2026-08-19 13:19 UTC: Latest major SDK versions are not impacted. Find upgrade docs here: https://langfuse.com/docs/observability/sdk/upgrade-path.
- **resolved** 2026-08-19 15:10 UTC: Back to normal propagation delay


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Canonical: https://rewindex.com/company/langfuse/incidents/01M0D0CCF6N91A79YYMFBGB9WJ · Markdown: https://rewindex.com/company/langfuse/incidents/01M0D0CCF6N91A79YYMFBGB9WJ.md · JSON: https://rewindex.com/api/v1/companies/langfuse/incidents/01M0D0CCF6N91A79YYMFBGB9WJ · Generated 2026-10-20T00:52:25.531Z