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Sauce Labs

2026-April-16 Resolved Service Incident

Degraded Lasted 0m · started · Sauce Labs's page

Level
confirmed
Worst impact
Degraded
Regions
eu, us
Down Index
16of 100

What to do

  • Check whether you use Sauce Labs in eu, us. Check your stack

    Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.
  • Confirm your retries, queues and scheduled jobs caught up after the 0m it lasted.

    Anything that failed between 2026-04-16 10:10 UTC and 2026-04-16 10:10 UTC may need a replay.
  • Subscribe to Sauce Labs's feed to hear about the next one first. RSS feed

    https://down.guide/feed?provider=saucelabs works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from Sauce Labs 2

  1. resolved

    Between 02:00 and 11:15 CEST, live and automated tests on iOS 17.0 simulators were failing to start in the EU and US-West Data Center. We executed a deployment rollback, which restored services. All systems are now fully operational.

    provider

  2. postmortem

    ### **Dates:** Thursday, April 16th 2026, 00:00 UTC – 09:15 UTC ### **What happened:** Live and automated tests on iOS 17.0 simulators failed to start in both the EU and US-West data centers. Customers running tests on iOS 17.0 Intel-based simulators were unable to execute their tests for approximately 9 hours. ### **Why it happened:** A deployment introduced an incompatibility affecting iOS 17.0 on Intel-based infrastructure. The issue was not caught prior to release due to insufficient post-deployment test coverage for that specific simulator configuration. ### **How we fixed it:** We performed a rollback to the previous deployment, which restored full iOS 17.0 simulator functionality. ### **What we are doing to prevent it from happening again:** We are reviving and expanding automated post-deployment tests to cover a broader range of simulator configurations, including legacy Intel-based iOS versions, to catch incompatibilities before they reach production.

    provider

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Corrections

None so far.

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Questions about DWN-3382113d65

Is Sauce Labs still down?

No, this incident was resolved 2026-04-16 10:10 UTC. For Sauce Labs's live state, see https://down.guide/saucelabs.

How long did it last?

0m, from 2026-04-16 10:10 UTC to 2026-04-16 10:10 UTC, by the times Sauce Labs posted.

What was affected?

Sauce Labs named in eu, us.

What caused it?

Sauce Labs hasn't published a root cause. If it does, it shows here.

Where does this come from?

Sauce Labs's official status page, https://status.saucelabs.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.