Umbraco Outage History

40 incidents recorded over the last 365 days, 39 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 Umbraco status100.00% uptime history

Every Recorded Umbraco Incident

Umbraco incidents, newest first, with date, duration and status.
DateIncidentDurationStatus
Nov 3, 2026Scheduled Upgrade for Umbraco CMS 13.16.4, 17.8.0 and 18.3.0We are canceling the 17.8.0 and 18.3.0 automatic upgrades that were planned for today. A potential breaking change has been found (issue: <https://github.com/umbraco/Umbraco-CMS/issues/24385>). It’s related to…12h 2mResolved
Oct 29, 2026Umbraco Cloud services (29-10-2026, 09:00–17:00 CET)On Thursday 29-10-2026, between 09:00 and 17:00 CET (08:00–16:00 UTC), we'll carry out scheduled maintenance on the Umbraco Cloud platform services to improve their stability and security. **What we're…8h 0mScheduled
Oct 29, 2026Umbraco Cloud services (29-10-2026, 09:00–17:00 CET)Maintenance has started8h 2mResolved
Oct 27, 2026Umbraco Cloud Websites unavailableThe issue has been resolved, and all affected Cloud sites in the West Europe region should now be available. If you are still experiencing issues, please contact our support team.2h 44mResolved
Oct 27, 2026Autoupgrade for Umbraco CMS 13.16.3, 17.7.2 and 18.2.2 and Umbraco Forms 13.9.12, 17.6.2 and 18.2.2Maintenance has started13h 50mResolved
Oct 21, 2026training.umbraco.com unavailableThis incident is now resolved.10h 41mResolved
Oct 13, 2026Autoupgrade for Umbraco Forms 17.6.1 and 18.2.1.Maintenance has started12h 0mResolved
Oct 8, 2026Umbraco Cloud websites (08-10-2026, 09:00–17:00 CEST)Maintenance has started8h 2mResolved
Oct 6, 2026Autoupgrade for Umbraco CMS 17.7.1 and 18.2.1.Maintenance has started12h 2mResolved
Sep 29, 2026Autoupgrade for Umbraco Forms 17.5.2, 18.1.3 and Umbraco Deploy 17.3.1, 18.1.1Maintenance has started12h 1mResolved
Sep 18, 2026Autoupgrade for Umbraco CMS 13.16.2, 17.7.0, 18.2.0, Umbraco Forms 13.9.11, 17.5.1, 18.1.2 and Umbraco Deploy 17.3.0, 18.1.0Maintenance has started114h 10mResolved
Sep 16, 2026Umbraco Cloud Portal Unavailable for a subset of usersThe issue is now resolved.11 minResolved
Sep 10, 2026Autoupgrade for Umbraco.Cloud.Identity.Cms 13.2.9 and Umbraco.Cloud.Cms 18.0.3 and 17.2.3Maintenance has started126h 36mResolved
Aug 27, 2026Autoupgrade for Umbraco CMS 13.16.1 and Umbraco Forms 18.1.1, 13.9.10Maintenance has started121h 1mResolved
Aug 20, 2026Autoupgrade for Umbraco Forms 17.5.0 and 18.1.0Maintenance has started121h 25mResolved
Aug 18, 2026CI/CD Deployments Failing on Umbraco CloudThis issue has been resolved.5h 56mResolved
Aug 13, 2026Autoupgrade for Umbraco CMS 17.6.2, 18.1.1, Umbraco Forms 13.9.9, 17.4.8, 18.0.6, Umbraco Identity 13.2.8, Umbraco.Cloud.Cms 13.1.1, 17.2.2, 18.0.2 and StorageProviders 13.2.1Maintenance has started122h 26mResolved
Aug 6, 2026Autoupgrade for Umbraco CMS 17.6.0 and 18.1.0**Update: today's automatic upgrade to Umbraco CMS 17.6.0 has been cancelled.** We've found a breaking change in 17.6.0 that can leave a site in a broken state after upgrading, so we're holding the rollout. The issue…121h 58mResolved
Jul 29, 2026Increased number of hanging automatic upgrades on Umbraco CloudThis incident is now resolved. The issue affected a small number of projects during automatic upgrades, where an upgrade could become stuck without completing. Around 2.7% of attempted upgrades were affected, and some…21h 50mResolved
Jun 3, 2026CI/CD delays in the UK South regionThe issue has been resolved.3h 42mResolved
Apr 29, 2026Degraded performance for provisioning environments on Umbraco Cloud.The issue has been resolved13h 8mResolved
Apr 21, 2026Umbraco Cloud – Degraded Performance (Slow Loading Times)All issues with slow performance are now resolved.2h 16mResolved
Apr 21, 2026Unable to create new projects, add environments and upgrade plansThis issue has now been resolved.8h 58mResolved
Mar 2, 2026Heartcore GraphQL and REST API elevated error ratesThe mitigation has proved successfull. We will still monitor the behaviour throughout the day.23h 9mResolved
Feb 4, 2026Unable to create new Heartcore projects on Umbraco CloudThis incident has been resolved.-673934 minResolved
Feb 4, 2026Degraded Performance on Deployments Between Environments in multiple regionsThis incident has been resolved-41276 minResolved
Feb 4, 2026Umbraco Cloud Service DisruptionThis incident has been resolved. Please reach out to our support team if you were affected by this issue.-542446 minResolved
Feb 4, 2026Umbraco Cloud Service Disruption - Unable to Create Baseline ChildrenThis incident has been resolved.-441877 minResolved
Feb 4, 2026Unable to delete environmentsThis incident has been resolved.-430757 minResolved
Feb 4, 2026Umbraco Cloud - Unable to create new environmentsThe incident has been resolved.-382587 minResolved
Feb 4, 2026Heartcore Rest API and Preview API not applying create/update/delete content operationsThis incident has been resolved.-381688 minResolved
Feb 4, 2026Umbraco Heartcore - Notification Emails Not Being Sent on Workflow or Content UpdatesThis incident has been resolved.-370271 minResolved
Feb 4, 2026Umbraco Cloud Service DisruptionUmbraco Cloud services have been restored and are now operational. This incident is resolved.-340731 minResolved
Feb 4, 2026Umbraco Heartcore GraphQL Incorrect ResponsesFollowing reports of the issue occurring, we rolled forward with a hotfix that both corrected the regression and retained the feature behavior.-233271 minResolved
Feb 4, 2026Unable to view projects in Umbraco Cloud PortalThis incident has been resolved.-194332 minResolved
Feb 4, 2026Users unable to activate CI/CD flow in Umbraco Cloud PortalThis incident has been resolved.-188691 minResolved
Feb 4, 2026Umbraco ID DisruptionThis incident has been resolved.-139795 minResolved
Feb 4, 2026Intermittent Availability Issues on Umbraco Cloud and Cloud PortalThis incident has been resolved.-111584 minResolved
Feb 4, 2026Users Unable to Sign In to Umbraco IDThis incident has been resolved.-110988 minResolved
Feb 4, 2026Custom Hostnames, Heartcore GraphQL APIs & umbraco.com returning 500 ErrorsThe incident has been resolved.-87827 minResolved

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How to Read This Umbraco 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 Umbraco 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 Umbraco outage in this window ran 5d 6h, against a mean recovery of 1d 13h. If you depend on Umbraco 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.