GitHub is reporting delays affecting pull request updates, webhook deliveries, Actions workflows and audit log events. The incident was first reported at 14:52 UTC on October 21, 2026, when the platform began investigating degraded performance across Actions, Pull Requests and Webhooks.
By 15:36 UTC, the company attributed the problem to increased load on its event streaming platform, which created processing hotspots. Engineers said they were shifting traffic away from affected areas and adding processing capacity while the mitigations took effect.
Recovery began later in the afternoon. By 16:33 UTC, pull request updates were operating normally, and Actions users were no longer experiencing impact. Webhook deliveries continued to recover as backlogs were processed. However, audit log events were still delayed by up to 110 minutes at the latest update.
The company said it is continuing to monitor recovery and will share further updates as more information becomes available.
Source: Hacker News · Summarized by HeadlinesBriefing