# Longer v3 -\> v4 propagation delay

- Provider: [Langfuse](https://down.guide/providers/langfuse)
- Confidence: Confirmed
- Impact: Degraded
- lasted 2h 34m
- started 2026-08-19 12:36 UTC
- id: DWN-f4a377bef3
- Official page: https://status.langfuse.com/incidents/01M0D0CCF6N91A79YYMFBGB9WJ

## Updates from Langfuse
### 2026-08-19 10:30 UTC: monitoring
We have scaled our database infrastructure to match the throughput demand

### 2026-08-19 13:19 UTC: monitoring
Latest major SDK versions are not impacted. Find upgrade docs here (https://langfuse.com/docs/observability/sdk/upgrade-path).

### 2026-08-19 15:10 UTC: resolved
Back to normal propagation delay

From the builder: does your app depend on Langfuse? [Sazabi](https://www.sazabi.com/?utm_source=down-guide&utm_medium=markdown&utm_content=langfuse) detects problems in your own logs without hand-written monitors, and you can ask it in plain language which errors mention Langfuse.

---
down.guide reads providers' official status pages every minute and adds its own evidence, always labeled. Free, no account. Agents: MCP at https://down.guide/mcp, REST at https://down.guide/api/v1, feeds at https://down.guide/feed. Built by [Sazabi](https://www.sazabi.com/?utm_source=down-guide&utm_medium=markdown&utm_content=DWN-f4a377bef3), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards.
