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Incident detail

Users May Not Receive Notifications on Slack Thread Replies

Users May Not Receive Notifications on Slack Thread Replies

Resolved incidentMajor1 affected service

Timeline window

Apr 27, 2026, 5:11 PM UTC to Apr 27, 2026, 8:36 PM UTC

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Timeline

Incident updates

Updates are normalized from the official source chronology so timeline changes remain easy to scan.

  1. Investigating

    Some users have reported issues with thread replies not generating a notification banner. We’re investigating the issue, and have identified a recent deployment as a possible trigger. We apologize for the inconvenience and will report back as more information becomes available.

    Apr 27, 2026, 5:11 PM UTC

  2. Monitoring

    We’re observing positive signals after rolling back the deployment in test environments. We will complete some final validations before rolling back the deployment in the production environment. Thank you for your patience as we work through this one. We’ll report back once production rollback is completed or if there are substantial updates to share.

    Apr 27, 2026, 6:07 PM UTC

  3. Resolved

    We’ve successfully performed a rollback in the production environment, and all systems are now functioning as expected. Users should no longer experience any issues with thread replies not generating a notification banner. We apologize for any inconvenience and appreciate your patience.

    Apr 27, 2026, 8:36 PM UTC