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ONESOURCE Determination Enterprise Cloud – Version 2026.05.09 UAT & PROD Patch Information (EMEA Region)

Scheduled Maintenance Report for Thomson Reuters Corporates

Completed

The scheduled maintenance has been completed.
Posted Oct 01, 2026 - 18:00 CDT

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Oct 01, 2026 - 14:00 CDT

Scheduled

Dear Valued Customers,

A patch (version 2026.05.09) for ONESOURCE Determination Enterprise Cloud is being applied to the UAT and PROD EMEA environments on the following dates:

● UAT: October 1, 2026, at 1:00 PM EST.
● PROD: October 1, 2026, at 3:00 PM EST.

You will be able to access the updated environment after the deployment is completed. Please note that you should not experience any downtime during the deployment window.

For details on the changes included, see the ONESOURCE Determination Enterprise Cloud 2026.05.09 release notes.

Thank you for your continued support. We look forward to providing you with the best possible tax compliance solutions.

Warmest regards,

ONESOURCE Indirect Tax Product Management
Posted Oct 01, 2026 - 12:59 CDT
This scheduled maintenance affected: Indirect Tax (ONESOURCE Determination Enterprise Cloud (AWS EMEA)).