Downrightnow
// Incident Post-MortemDRN-20153DD8

GitHub outage on June 16, 2026

Minor severityResolved2h 58mDeveloper Tools
Started · UTC
Jun 16, 05:47 PM
9d ago
Resolved · UTC
Jun 16, 08:45 PM
8d ago
Duration
2h 58m
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 58m. The stored report window does not show a preserved user-report spike.

// What happened

Jun 16, 17:47 UTC Update - We are experiencing degraded availability for the Opus 4.8 model in Copilot products and IDE surfaces. This is due to an issue with an upstream model provider. While we work with them to resolve the issue, we recommend choosing another model or selecting 'Auto' to continue using Copilot. Jun 16, 17:45 UTC Investigating - We are investigating reports of degraded availability for Copilot AI Model Providers

Deterministic readout · awaiting AI summary pass

// Timeline
  1. Incident detected

    Minor confidence crossed the incident threshold for GitHub: disruption with some GitHub services.

  2. Marked resolved

    The incident was closed after 2h 58m 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 Tue, Jun 16, 2026, 08:45 PM UTC.