Between July 3rd and July 5th, 2025, customers in multiple regions experienced intermittent issues with Mentor features. The disruptions stemmed from a failure during a service deployment that impacted the stability of the underlying infrastructure. While the overall incident duration was approximately 30 hours, customer-facing impact was limited and sporadic, with most functionality remaining available during the affected period.
The root cause was a combination of deployment inconsistencies and environment misalignments that surfaced during the release process. Recovery was achieved by deploying a revised and stabilized version of the service.
To prevent future occurrences, work is underway to improve deployment validation processes, refine rollback mechanisms, and accelerate the implementation of a multi-region pre-production testing environment to catch region-specific issues earlier in the release cycle.