Halcyon Outage History

20 incidents recorded over the last 365 days, 9 of them resolved. Durations are measured from when PulsAPI first saw the problem to when it cleared, which is usually longer than the vendor's own figure.

Live Halcyon status99.90% uptime history

Every Recorded Halcyon Incident

Halcyon incidents, newest first, with date, duration and status.
DateIncidentDurationStatus
Nov 3, 2026Halcyon Documentation UnavailableThis incident has been resolved.2h 10mResolved
Oct 28, 2026US Scheduled MaintenanceScheduled maintenance is currently in progress. We will provide updates as necessary.2h 0mScheduled
Oct 13, 2026Data Processing Delays - Degraded Agent CommsThis incident has been resolved.48 minResolved
Sep 24, 2026Elevated API ErrorsThis incident has been resolved.1h 33mResolved
May 18, 2026Elevated ErrorsThis incident has been resolved.14h 47mResolved
May 13, 2026US Scheduled MaintenanceThe scheduled maintenance has been completed.2h 0mScheduled
May 12, 2026EU Scheduled MaintenanceThe scheduled maintenance has been completed.2h 0mScheduled
May 12, 2026AE Scheduled MaintenanceThe scheduled maintenance has been completed.2h 0mScheduled
May 12, 2026AP Scheduled MaintenanceThe scheduled maintenance has been completed.1h 0mScheduled
Mar 2, 2026UAE Region DisruptionThis incident has been resolved.82h 19mResolved
Feb 4, 2026US Scheduled MaintenanceThe scheduled maintenance has been completed.2h 0mScheduled
Feb 3, 2026EU Scheduled MaintenanceThe scheduled maintenance has been completed.2h 0mScheduled
Feb 3, 2026AE Scheduled MaintenanceThe scheduled maintenance has been completed.2h 0mScheduled
Feb 3, 2026AP Scheduled MaintenanceThe scheduled maintenance has been completed.2h 0mScheduled
Jan 27, 2026Data Processing DelaysThis incident has been resolved.1h 4mResolved
Jan 19, 2026Network Connection Issues in EUThis incident has been resolved.3h 6mResolved
Dec 17, 2025EU Scheduled MaintenanceThe scheduled maintenance has been completed.2h 0mScheduled
Dec 17, 2025AE Scheduled MaintenanceThe scheduled maintenance has been completed.2h 0mScheduled
Dec 9, 2025Data Processing Delays - Console AffectedThis incident has been resolved.1h 16mResolved
Nov 6, 2025Platform Pipeline Delayed ReportingThis incident has been resolved.1h 23mResolved

Hear about the next one while it is open

Everything above is a record written after the fact. We can email you when the next Halcyon incident opens instead, at the point where knowing still changes what you do.

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How to Read This Halcyon Incident Log

Each row is an incident PulsAPI observed, not a summary written afterwards. The duration is wall-clock time between the first failing check and the first clean one, so it includes the window before Halcyon acknowledged anything. Vendor post-mortems typically measure from acknowledgement, which is why their numbers are usually shorter.

Incidents still open have no duration yet and are listed as ongoing rather than being given a running total. The archive covers the last 365 days; anything older has aged out of the window rather than never having happened.

The longest single Halcyon outage in this window ran 3d 10h, against a mean recovery of 6h 28m. If you depend on Halcyon in a customer-facing path, the longest figure is the one to design around. The mean is what happens on a normal bad day; the maximum is what happens on the worst one.