CircleCI incident: Delays starting macOS jobs that use Xcode 26.6.0

Affected components

• macOS Jobs

1. resolvedOct 14, 2026, 16:01 UTC

   Between approximately 14:00 UTC and 15:51 UTC on October 14, customers running macOS jobs that use Xcode 26.6.0 or Xcode 26.4 experienced delays starting jobs. From approximately 14:00 UTC, jobs that use Xcode 26.6.0 on the M4 Pro large resource class waited 30 minutes or more to start, and these delays recovered at approximately 15:12 UTC. From approximately 15:11 UTC, jobs that use Xcode 26.4 waited about 30 minutes to start. The issue has been resolved and all affected functionality has returned to normal. We thank you for your patience while our team worked on implementing a fix.

2. identifiedOct 14, 2026, 15:17 UTC

   Delays starting macOS jobs that use Xcode 26.6.0 have recovered. Since approximately 15:11 UTC, macOS jobs that use Xcode 26.4 are experiencing delays starting, with wait times of about 30 minutes. Thank you for your patience while our engineers work to resolve this. We will provide another update by 15:45 UTC.

3. investigatingOct 14, 2026, 14:47 UTC

   Since approximately 14:00 UTC, customers running macOS jobs that use Xcode 26.6.0 on the M4 Pro large resource class are experiencing delays starting jobs. Wait times have reached 30 minutes or more. Thank you for your patience while our engineers investigate. We will provide another update by 15:30 UTC.

What APIStatus.watch saw

• Oct 14, 2026, 14:49 UTCoperational → degraded
• Oct 14, 2026, 16:05 UTCdegraded → operational

Other services with incidents at the same time

Overlapping incidents aren't necessarily related.

• OVHcloud: [GRA9/GRA11][Public Cloud] - Network API incident notificationMajor · Oct 14, 2026, 14:46 UTC
• Grafana Cloud: IRM Unable to Send SMS to Thailand NumbersMinor · Oct 5, 2026, 16:17 UTC
• LiveKit: Investigating reports of elevated RoomService API errorsMinor · Oct 6, 2026, 00:10 UTC
• Shopify: Some merchants encountering error messages when trying to login to their adminsMinor · Oct 8, 2026, 14:49 UTC
• OVHcloud: [EU-WEST-PAR][Storage] - Object Storage S3 incident notificationMinor · Oct 8, 2026, 15:14 UTC
• Twilio: SMS Delivery Delays and Failures from a Subset of Twilio Alphanumeric Sender IDs to Mobile ChinaMinor · Oct 9, 2026, 06:42 UTC
• Cloudflare: Elevated Errors in China Network ColosMinor · Oct 10, 2026, 04:13 UTC
• Twilio: Voice Call Post Dial Delay from a Subset of Twilio Phone Numbers to ThailandMinor · Oct 12, 2026, 11:53 UTC
• Supabase: Realtime latencyMinor · Oct 12, 2026, 22:59 UTC
• Grafana Cloud: Phone call notifications to numbers in Russia and Kazakhstan are blockedMinor · Oct 13, 2026, 09:23 UTC

How often does CircleCI have incidents?

CircleCI reported 23 incidents in the last 90 days, 3 of them major or critical. A typical incident lasted 1h 31m. See CircleCI's uptime and incident history