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Outage in Fly.io

Depot builder failures

Resolved Minor
September 15, 2026 - Started about 16 hours ago - Lasted about 1 hour
Official incident page

Incident Report

Summary AI Generated

Fly.io experienced a 1.5-hour incident where Depot-based builds failed for customers connecting through the Sydney (SYD) and Johannesburg (JNB) regions. Affected users could work around the issue by using the `--depot=false` or `--buildkit` flags with flyctl. A fix was implemented and the incident was fully resolved.

We are investigating reports of Depot builds failing for some customers. Affected customers can deploy successfully using the --depot=false or --buildkit arguments to flyctl.
Components affected
Fly.io Deployments

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Latest Updates ( sorted recent to last )
RESOLVED about 14 hours ago - at 09/15/2026 05:34AM

This incident has been resolved.

MONITORING about 15 hours ago - at 09/15/2026 04:51AM

A fix has been implemented and we are monitoring builds. Standard flyctl builds should be working again for customers in all regions.

IDENTIFIED about 15 hours ago - at 09/15/2026 04:45AM

We have identified an issue with deploying via Depot for users connecting through our SYD and JNB regions. Affected customers in these regions can deploy successfully using the --depot=false or --buildkit arguments to flyctl.

INVESTIGATING about 16 hours ago - at 09/15/2026 04:08AM

We are investigating reports of Depot builds failing for some customers. Affected customers can deploy successfully using the --depot=false or --buildkit arguments to flyctl.

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