MC1319207: Planned maintenance: Windows 365 Microsoft Hosted Network (MHN) geography naming updates

Introduction

We’re updating geography naming in Windows 365 Microsoft Hosted Network (MHN) Multi-Region Selection to better align with Microsoft and Azure naming conventions. Geographies represent location groupings used in multi-region provisioning to help admins select where Cloud PCs are deployed. As part of this update, Australasia is being renamed to Australia & New Zealand (ANZ), and Central America is being renamed to Mexico, making the naming more precise and consistent with how regions are represented across Microsoft services.

How this will affect your organization

The maintenance will occur in two phases:

• May 31, 2026, 2:00–4:00 PM UTC
• June 7, 2026, 6:00–8:00 AM UTC

During each maintenance window:

• Maintenance windows are up to 2 hours, with impact limited to approximately 1 hour per region.
• During this time, admins may be unable to create new provisioning policies using the current Australasia and Central America geographies and their associated regions.
• Provisioning new Cloud PCs with existing provisioning policies using these geographies and their associated regions will not be affected.
• Existing Cloud PCs and end-user access will not be affected.

Full functionality will automatically resume after the maintenance window completes.

The following geography names will be updated:

• Australasia → Australia & New Zealand (ANZ)
• Central America → Mexico

Geography names represent location groupings used for placement and resiliency. These are naming-only changes and do not affect Azure regions, capacity, or existing Cloud PCs.

What you need to do to prepare

No action is required.

You may optionally review and update any internal documentation that references previous geography names.

Scope:

This communication applies to customers using Microsoft Hosted Network (MHN) Multi-Region Selection in the affected geographies.

Customers using Azure Network Connection (ANC) are not impacted.

Additional information

• Windows 365 multi-region resiliency (Microsoft Hosted Network)
• Supported Azure regions for Cloud PC provisioning