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Flag delivery errors in Streaming API

ResolvedminorOfficial source confirmedSpecific component onlyFirst recorded update Aug 26, 2026, 07:45 PM · Resolved Aug 26, 2026, 08:00 PM

This incident has been resolved. Between 12:00 and 12:12 PM PDT on August 26, server-side SDKs establishing new streaming connections experienced elevated error rates. Existing streaming connections were not affected, and polling requests continued to be served with error rates below 1%. Some requests to the LaunchDarkly web application also experienced elevated errors between approximately 11:29 AM and 12:03 PM PDT. The issue was caused by an internal configuration change, which has been reverted. All systems have recovered and are operating normally. No customer data was lost or compromised.

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What visitors reported during this incident

No visitor reports were filed for this incident.

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Affected services

Server-side streaming API

Updates (2)

  1. Aug 26, 2026, 08:00 PM
    Flag delivery errors in Streaming API

    This incident has been resolved. Between 12:00 and 12:12 PM PDT on August 26, server-side SDKs establishing new streaming connections experienced elevated error rates. Existing streaming connections were not affected, and polling requests continued to be served with error rates below 1%. Some requests to the LaunchDarkly web application also experienced elevated errors between approximately 11:29 AM and 12:03 PM PDT. The issue was caused by an internal configuration change, which has been reverted. All systems have recovered and are operating normally. No customer data was lost or compromised.

    LaunchDarkly ↗
  2. Aug 26, 2026, 07:45 PM
    Flag delivery errors in Streaming API

    Server-side streaming requests experienced elevated error rates between approximately 12:00 p.m. and 12:12 p.m. PDT, and some SDKs establishing new streaming connections may have been unable to connect. Polling request error rates remained below 1% throughout the incident. No customer data was lost or compromised. We apologize for the disruption.

    LaunchDarkly ↗

What to do next

  • Verify your own services recovered cleanly. Some upstream outages leave queues or caches in a degraded state, run smoke tests before declaring green internally.
  • Save the post-mortem. Vendors usually publish a detailed RCA 1-3 days later. We'll add it to this page when it appears.
  • Watch the provider going forward. Follow LaunchDarkly's status feed →

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