Downrightnow
// Incident Post-MortemDRN-355562BA

GitHub outage on June 17, 2026

Minor severityResolved2h 59mDeveloper Tools
Started · UTC
Jun 17, 04:26 AM
7d ago
Resolved · UTC
Jun 17, 07:25 AM
7d ago
Duration
2h 59m
End-to-end
Peak confidence
45.00
0 snapshots
// User impact

GitHub users likely saw failed connections, degraded availability, or session instability for this Developer Tools service. The incident reached Minor severity and lasted 2h 59m. The stored report window does not show a preserved user-report spike.

// What happened

Jun 17, 04:26 UTC Update - We've applied a mitigation to unblock Copilot functionality. Users may start to see signs of recovery. Relaunching your client should accelerate signs of recovery. We will continue to monitor the situation. Jun 17, 03:52 UTC Update - We are experiencing degraded availability for chat & agent models in Copilot. Multiple models are impacted and customers may experience requests failing. We are investigating and will provide an update as soon as possible. Jun 17, 03:50 UTC Investigating - We are investigating reports of degraded availability for Copilot

Deterministic readout · awaiting AI summary pass

// Timeline
  1. Incident detected

    Minor confidence crossed the incident threshold for GitHub: incident with Copilot Availability.

  2. Marked resolved

    The incident was closed after 2h 59m of observed impact.

// Signals by source0 sources

No per-source signal payloads were preserved in this incident's snapshot window.

// Aggregate evidence

Confidence scoring

45.00

The incident reached 45.00 peak confidence across available stored status snapshots.

User reports

0 / 15m

No elevated user-report volume was preserved in the incident window snapshots.

Status samples

0 affected

The incident row exists, but the bounded snapshot window does not include affected status samples.

Recovery signal

Resolved

Recovery was recorded at Wed, Jun 17, 2026, 07:25 AM UTC.