Changes / Linear / EU sync failure

Linear: Critical incident: EU sync failure

Summary

Linear reported a critical EU sync outage starting 2026-09-27 00:55 UTC; the incident record lasted 4 days 16 h, closing 2026-10-01 17:50 UTC. Linear identified a faulty deployment; a restart restored access and offline syncing by 09-27 11:15 UTC. Linear said user impact ended then and later published a post-mortem.

Machine-written from the diff below (Sol; type: incident outage). Check the diff before relying on it.

Major incidentLabel: outage (model (Jev), 100%)Changed Detected Source: linearstatus.com (opens in new tab)

What changed

AddedTitle#1
Before: not present
After: EU sync failure
AddedImpact#2
Before: not present
After: critical
AddedStatus#3
Before: not present
After: resolved
AddedStart time#4
Before: not present
After: 2026-09-27 00:55 UTC
AddedResolved time#5
Before: not present
After: 2026-10-01 17:50 UTC
AddedUpdateinvestigating#6
Before: not present
After: We are investigating an outage with our EU server. We'll post updates here as soon as possible.
AddedUpdatemonitoring#7
Before: not present
After: We've identified a faulty deployment and a restart has reenabled connections. EU users should be able to access Linear now and changes offline should now be synced. Please reach out to support@linear.app if you are experiencing issues. Given the scope and impact of the incident, we will follow up with a detailed post-mortem.
AddedUpdateresolved#8
Before: not present
After: The issues affecting EU Linear users from 00:55 to 11:15 UTC today have been resolved and changes made offline should now be synced. Please reach out to support@linear.app: mailto:support@linear.app if you are experiencing issues. We apologize for the downtime and are continuing to implement changes to improve our resilience in the future.
AddedUpdateresolved#9
Before: not present
After: We've published a post mortem with details on this incident including a timeline of events and prevention steps for the future: https://linear.app/docs/eu-sync-outage

First version of this incident archived by Rewindex. View the live incident (opens in new tab).

History of this incident

When (UTC)ChangeKind
Critical incident: EU sync failure (this change)
Linear reported a critical EU sync outage starting 2026-09-27 00:55 UTC; the incident record lasted 4 days 16 h, closing 2026-10-01 17:50 UTC. Linear identified a faulty deployment; a restart restored access and offline syncing by 09-27 11:15 UTC. Linear said user impact ended then and later published a post-mortem.
Major incident

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