On 2025-22-01 05:06 AM UTC, the Testsigma application experienced an unexpected downtime due to the application of a package upgrade. This issue was not reproducible in the test environment and surfaced only after the deployment in the production environment. The team promptly identified the root cause and implemented a resolution, bringing the application back online at 2025-22-01 07:26 AM UTC.

The incident was caused by an unforeseen incompatibility introduced by a package upgrade in the production environment. While the upgrade was thoroughly tested in the staging environment, differences in the configurations between staging and production environments allowed the issue to manifest only in production.

To resolve the issue, the team immediately engaged the incident response team to diagnose and resolve the issue.