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LaunchDarkly Outage History

Every past LaunchDarkly outage tracked by IsDown, with detection times, duration, and resolution details.

There were 503 LaunchDarkly outages since July 2018. The 68 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Minor May 5, 2026

May 2026: Elevated Streaming Errors in APAC region

Detected May 5, 2026 11:58 PM EDT · Resolved May 6, 2026 12:28 AM EDT · Duration 30 minutes

LaunchDarkly experienced elevated streaming initialization error rates in the APAC region for 30 minutes, caused by an infrastructure issue. Customers using streaming server-side SDKs experienced longer than normal initialization times or timeouts when connecting to the service. The issue was resolved by implementing a fix that restored normal streaming SDK connectivity.

Minor May 4, 2026

May 2026: Experiment and multi-armed bandit results delayed

Detected May 4, 2026 3:47 PM EDT · Resolved May 4, 2026 4:28 PM EDT · Duration 41 minutes

LaunchDarkly experienced delays in experiment and multi-armed bandit results, with data delayed by 1-2 hours during the incident. The service identified and implemented a fix to resolve the processing backlog. All experiment data was fully caught up within 41 minutes with no data loss.

Minor May 4, 2026

May 2026: Elevated Streaming Errors in Europe

Detected May 4, 2026 6:14 AM EDT · Resolved May 4, 2026 12:24 PM EDT · Duration about 6 hours

LaunchDarkly experienced elevated streaming errors in the Europe region for 6.2 hours, caused by an infrastructure issue that affected the Streaming API. Customers using streaming server-side SDKs experienced longer than normal initialization times or timeouts when connecting to the service. The issue was resolved after implementing a fix that restored normal streaming SDK connectivity.

Minor May 2, 2026

May 2026: Delay in Experimentation Results and Experimentation Warehouse Data Export

Detected May 2, 2026 8:55 AM EDT · Resolved May 2, 2026 3:19 PM EDT · Duration about 6 hours

LaunchDarkly experienced a 6.4-hour incident that caused delays in experimentation results processing and data warehouse export functionality. The service identified the root cause and implemented a fix, then worked through a backlog of delayed data processing. The issue was fully resolved when all experimentation results and data warehouse exports were caught up.

Minor April 30, 2026

April 2026: Streaming Data Export Delay

Detected Apr 30, 2026 7:14 AM EDT · Resolved Apr 30, 2026 7:59 AM EDT · Duration about 1 hour

LaunchDarkly experienced a 45-minute delay in streaming data export delivery caused by latency issues in their Pub/Sub export system. Customers using streaming data export experienced multi-minute lags in receiving their data, though no data was lost during the incident. The issue was resolved by addressing the Pub/Sub latency and clearing the accumulated export backlog.

Minor April 29, 2026

April 2026: Issue with Experiment Results in case of Flag Variation edits

Detected Apr 29, 2026 4:19 PM EDT · Resolved Apr 30, 2026 8:13 PM EDT · Duration 1 day

LaunchDarkly experienced an issue where editing flag variations between experiment iterations caused sample ratio mismatches (SRMs) or empty experiment results for some customers. The service implemented a fix to prevent the issue in new experiments and then validated a complete resolution for all affected experiments. The incident lasted 27.9 hours and impacted only a small subset of experimentation customers.

Minor April 28, 2026

April 2026: Issues with Observability Alert Notification

Detected Apr 28, 2026 2:34 PM EDT · Resolved Apr 28, 2026 3:28 PM EDT · Duration about 1 hour

LaunchDarkly experienced a 54-minute outage where Observability alert notifications failed to be delivered to users. The engineering team identified the root cause, deployed a fix, and redelivered all delayed notifications. All other notification types remained operational throughout the incident.

Minor April 27, 2026

April 2026: Delayed Metrics ingest in EU

Detected Apr 27, 2026 11:39 AM EDT · Resolved Apr 27, 2026 1:40 PM EDT · Duration about 2 hours

LaunchDarkly experienced a metrics ingestion delay in the EU region that caused under-reporting of customer metrics for approximately 16 minutes (11:11-11:27am ET). The service team identified the issue, confirmed no data was lost, and spent 2 hours processing the backlogged metrics data. The incident was fully resolved once all delayed metrics were successfully ingested and caught up.

Major April 20, 2026

April 2026: Docs site is down

Detected Apr 20, 2026 6:04 PM EDT · Resolved Apr 20, 2026 6:31 PM EDT · Duration 27 minutes

LaunchDarkly's documentation site experienced a major outage for 27 minutes due to an issue with their documentation provider. The incident was identified as being linked to an outage on the doc provider's side, and a fix was implemented to restore service.

Minor April 20, 2026

April 2026: Observability Alerts are not Delivering Slack Notifications

Detected Apr 20, 2026 5:27 PM EDT · Resolved Apr 20, 2026 7:47 PM EDT · Duration about 2 hours

LaunchDarkly experienced an issue where observability alerts failed to deliver Slack notifications to channels, though direct message alerts continued working normally. The problem was identified after approximately 1.5 hours of investigation and fully resolved after 2.3 hours total duration.