This summary is created by Generative AI and may differ from the actual content.
Overview
A 48-minute disruption occurred between 15:49 and 16:37 UTC on August 20, 2025, preventing users from creating new GitHub accounts via the web signup page due to server errors. The issue was detected at 16:04 UTC and resolved by rolling back a recent problematic change to the signup flow logic.Impact
Users attempting to create new GitHub accounts via the web signup page consistently received server errors and were unable to complete the signup process for a duration of 48 minutes. This represented a complete outage of new account creation functionality during the incident window.Trigger
The incident was triggered by a recent change to the signup flow logic that introduced a bug, causing all new account creation attempts to consistently return server errors.Detection
The issue was detected at 16:04 UTC, 15 minutes after the disruption began. The postmortem does not specify the exact method of detection (e.g., automated alerts, user reports).Resolution
The disability was resolved by rolling back the recent change to the signup flow logic that was causing the errors, thereby restoring normal signup functionality.Root Cause
The root cause was a faulty code change introduced in the signup flow logic. This change caused all new account creation attempts to fail and was not caught prior to deployment due to an identified gap in test coverage.
