GitHub Battles Multiple Outages in April, Including Prolonged Code Search Blackout

Code Search Fully Unavailable for Over Two Hours

GitHub experienced a significant code search outage on April 1, 2026, that left all search queries failing for 2 hours and 20 minutes. Service was restored in a degraded state by 17:00 UTC, but results remained stale until full recovery at 23:45 UTC.

"We deeply regret the impact on developers who rely on code search," said a GitHub spokesperson. "Our team worked around the clock to restore full functionality."

Audit Log Service Also Disrupted

On the same day, between 15:34 and 16:02 UTC, the audit log service lost connectivity to its backing data store due to a failed credential rotation. This caused 5xx errors for over 4,000 API actors and 127 web users.

While no audit log events were lost, they were delayed by up to 29 minutes. Enterprise Cloud customers with data residency were unaffected.

Two Major Incidents Highlighted in Monthly Report

GitHub's April availability report, released today, lists a total of 10 incidents that degraded performance across services. The company emphasized transparency by publishing detailed post-mortems for the April 1 and April 23-27 events.

"We are investing in better safeguards to prevent similar issues," the spokesperson added. "Our goal is to ensure reliability for every user."

Background

GitHub hosts over 100 million repositories and serves millions of developers worldwide. Its code search feature is a critical tool for navigating large codebases, and the audit log is essential for security compliance.

The April 1 code search outage was triggered by a routine infrastructure upgrade to the messaging system. An automated change was applied too aggressively, causing a coordination failure that halted search indexing and eventually led to a complete outage.

What This Means

Developers lost productivity during the search blackout, and teams relying on audit logs faced temporary visibility gaps. While no data was lost, these incidents highlight the fragility of distributed systems.

GitHub has pledged to implement gradual upgrades with better health checks, deployment safeguards, and faster recovery tooling. Users can expect more robust incident response in the future.

"We take our role as a platform for developers very seriously," the spokesperson concluded. "Every outage is a learning opportunity."