Favorite your Message Center and Roadmap items. Access them anytime via your Profile. Export and share with your team or your LLM.

(Updated) Planned Maintenance: Windows 365 Service

Message ID
MC1251199
View in Message Center
Service
Windows 365
Category
Stay Informed
Tags
User impactAdmin impact

Summary

The planned Windows 365 maintenance to improve performance has been cancelled. No service downtime was expected; brief reconnections might have occurred during maintenance windows. No user action is needed, and the service remains fully available.

Details

Updated March 17, 2026: We have cancelled this planned maintenance. We apologize for any inconvenience. 

To improve performance and reliability, we have scheduled planned maintenance for the Windows 365 service. This maintenance will occur during non-peak hours, based on the Client Device’s local time zone, to minimize potential impact on your organization. For organizations with users across multiple regions, we recognize that non-peak hours may vary. Maintenance will take place separately in each region, affecting only users connecting from that location during the scheduled time. The times listed below indicate the actual maintenance start times for each region, not adjusted for different time zones.

During this period, there will be no service downtime. Users are expected to experience little to no disruption.

Maintenance Schedule:

  • Start Date: N/A
  • End Date: N/A

Daily Maintenance Window Start Times:

  • Africa: N/A
  • Asia Pacific: N/A
  • Australia: N/A
  • Europe: N/A
  • India: N/A
  • Middle East: N/A
  • North America: N/A
  • South America: N/A

Daily Maintenance Window End Times:

  • Africa: N/A
  • Asia Pacific: N/A
  • Australia: N/A
  • Europe: N/A
  • India: N/A
  • Middle East: N/A
  • North America: N/A
  • South America: N/A

[How does this affect my organization:]

  • During the maintenance window, users actively connected via UDP relay may experience brief, automatic reconnections, with each disconnection lasting less than a minute.
  • While the total planned impact duration is up to 4 hours within the maintenance window, disconnections will only occur 1-2 times and will not persist throughout the entire 4-hour period.
  • Users can establish new connections without impact during the maintenance window. The service will remain fully available without any downtime.

[What do I need to do to prepare for this change:]

  • No further action is required, as systems will automatically recover from any temporary interruptions. You may want to notify your helpdesk and end-users of the scheduled maintenance and the potential for brief disruptions.
  • We are committed to providing a seamless experience and appreciate your understanding as we carry out this necessary maintenance to enhance the reliability of Windows 365 services.

Change History

Show
March 18, 2026 at 4:30 PM Updated
Title
Previous
Planned Maintenance: Windows 365 Service
New
(Updated) Planned Maintenance: Windows 365 Service
Summary
Previous
Planned maintenance for Windows 365 will occur March 23-27, 2026, during non-peak hours by region, with no service downtime. Users may experience brief reconnections lasting under a minute, 1-2 times during the 4-hour maintenance window. No action is needed; systems will recover automatically.
New
The planned Windows 365 maintenance to improve performance has been cancelled. No service downtime was expected; brief reconnections might have occurred during maintenance windows. No user action is needed, and the service remains fully available.
Last Updated Date
Previous
2026-03-13T22:44:47.797Z
New
2026-03-18T16:10:23.180Z
Tags
Previous
User impact,Admin impact
New
Updated message,User impact,Admin impact
Body Content
Previous

To improve performance and reliability, we have scheduled planned maintenance for the Windows 365 service. This maintenance will occur during non-peak hours, based on the Client Device’s local time zone, to minimize potential impact on your organization. For organizations with users across multiple regions, we recognize that non-peak hours may vary. Maintenance will take place separately in each region, affecting only users connecting from that location during the scheduled time. The times listed below indicate the actual maintenance start times for each region, not adjusted for different time zones.

During this period, there will be no service downtime. Users are expected to experience little to no disruption.

Maintenance Schedule:

  • Start Date: March 23, 2026
  • End Date: March 27, 2026

Daily Maintenance Window Start Times:

  • Africa: 23:00 UTC
  • Asia Pacific: 16:30 UTC
  • Australia: 14:00 UTC
  • Europe: 00:00 UTC
  • India: 19:30 UTC
  • Middle East: 22:00 UTC
  • North America: 06:00 UTC
  • South America: 05:00 UTC

Daily Maintenance Window End Times:

  • Africa: 03:00 UTC
  • Asia Pacific: 20:30 UTC
  • Australia: 18:00 UTC
  • Europe: 04:00 UTC
  • India: 23:30 UTC
  • Middle East 02:00 UTC
  • North America: 10:00 UTC
  • South America: 09:00 UTC

[How does this affect my organization:]

  • During the maintenance window, users actively connected via UDP relay may experience brief, automatic reconnections, with each disconnection lasting less than a minute.
  • While the total planned impact duration is up to 4 hours within the maintenance window, disconnections will only occur 1-2 times and will not persist throughout the entire 4-hour period.
  • Users can establish new connections without impact during the maintenance window. The service will remain fully available without any downtime.

[What do I need to do to prepare for this change:]

  • No further action is required, as systems will automatically recover from any temporary interruptions. You may want to notify your helpdesk and end-users of the scheduled maintenance and the potential for brief disruptions.
  • We are committed to providing a seamless experience and appreciate your understanding as we carry out this necessary maintenance to enhance the reliability of Windows 365 services.

New

Updated March 17, 2026: We have cancelled this planned maintenance. We apologize for any inconvenience. 

To improve performance and reliability, we have scheduled planned maintenance for the Windows 365 service. This maintenance will occur during non-peak hours, based on the Client Device’s local time zone, to minimize potential impact on your organization. For organizations with users across multiple regions, we recognize that non-peak hours may vary. Maintenance will take place separately in each region, affecting only users connecting from that location during the scheduled time. The times listed below indicate the actual maintenance start times for each region, not adjusted for different time zones.

During this period, there will be no service downtime. Users are expected to experience little to no disruption.

Maintenance Schedule:

  • Start Date: N/A
  • End Date: N/A

Daily Maintenance Window Start Times:

  • Africa: N/A
  • Asia Pacific: N/A
  • Australia: N/A
  • Europe: N/A
  • India: N/A
  • Middle East: N/A
  • North America: N/A
  • South America: N/A

Daily Maintenance Window End Times:

  • Africa: N/A
  • Asia Pacific: N/A
  • Australia: N/A
  • Europe: N/A
  • India: N/A
  • Middle East: N/A
  • North America: N/A
  • South America: N/A

[How does this affect my organization:]

  • During the maintenance window, users actively connected via UDP relay may experience brief, automatic reconnections, with each disconnection lasting less than a minute.
  • While the total planned impact duration is up to 4 hours within the maintenance window, disconnections will only occur 1-2 times and will not persist throughout the entire 4-hour period.
  • Users can establish new connections without impact during the maintenance window. The service will remain fully available without any downtime.

[What do I need to do to prepare for this change:]

  • No further action is required, as systems will automatically recover from any temporary interruptions. You may want to notify your helpdesk and end-users of the scheduled maintenance and the potential for brief disruptions.
  • We are committed to providing a seamless experience and appreciate your understanding as we carry out this necessary maintenance to enhance the reliability of Windows 365 services.

Never Miss a Microsoft 365 Update

Join thousands of IT professionals who rely on DeltaPulse for real-time Microsoft 365 change intelligence, automated notifications, and community insights.