Horizon Cloud Team has identified an issue with core vCenter of your Horizon Cloud environment in the USA - Virginia data center. Currently, our engineering team is working with a high priority on fixing the issue. We will keep you posted with updates. Please be advised that Horizon Cloud will be performing maintenance on management devices during this maintenance window. We need to do DLR and edge redeploy for WDC-Core VC and we need 30 minutes of down time for DLR and edge redeploy. Horizon Cloud Maintenance Window: • Start Friday, June 10, 2022 04:30 AM UTC • End: Friday, June 10, 2022 05:00 AM UTC • Datacenter Affected: USA – Virginia (WDC04 Core vCenter) Impacted: • Virtual Desktops up-time and Network connectivity - We are expecting interruption in accessing existing desktops. • Provisioning of new Virtual Desktops - During this Window provision of new Virtual Desktops will be impacted. • Virtual Desktops power operations - During this Window power operations to existing Virtual Desktops will be impacted. • Changes to the existing pool – Any pool changes will be impacted. Impact Duration: A short (not more than 30 minutes) customer impact is expected during this maintenance activity. Service reliability is a top priority at Horizon Cloud and we are making continuous improvements to better our systems. Please visit Service Support Website at http://my.vmware.com or call Service Support Line at 1-877-4VMWARE if you need additional assistance. Additional Information and Support: • VMware will provide additional updates on our Unified Status page (http://status.workspaceone.com) until this issue has been resolved.

Maintenance will begin as scheduled in 60 minutes.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Scheduled maintenance has been completed. Thank you for patience. Additional Information and Support: Please visit Service Support Website at http://my.vmware.com or call Service Support Line at 1-877-4VMWARE if you need additional assistance.

Alert: vCenter server issue Datacenter Affected: Virginia (WD04) Horizon Cloud Team has identified an issue with vCenter servers of your Horizon Cloud environment in the Virginia data center due to an outage at our Data Center Service Provider. Currently, our engineering team is working with a high priority on fixing the issue. We will keep you posted with updates. Impacted: • Virtual Desktops might be unavailable to users • Virtual Desktops power operations - Power operation to existing Virtual Desktops might be impacted. • Provisioning of new Virtual Desktops - Provision of new Virtual Desktops will be impacted. Service reliability is a top priority at Horizon Cloud and we are making continuous improvements to better our systems. Please visit Service Support Website at http://my.vmware.com or call Service Support Line at 1-877-4VMWARE if you need additional assistance. Additional Information and Support: • VMware will provide additional updates on our Unified Status page (http://status.workspaceone.com) until this issue has been resolved.

The maintenance activity has been completed. Thank you for your patience and apologies for any inconvenience caused. Service reliability is a top priority at Horizon Cloud and we are making continuous improvements to better our systems. Additional Information and Support: Please visit Service Support Website at http://my.vmware.com or call Service Support Line at 1-877-4VMWARE if you need additional assistance.

Upcoming scheduled maintenance notice - VMware Horizon Cloud Services team is in process of applying additional recommended patches to ensure product stability. Please be advised that Horizon Cloud for IBM will be performing maintenance (for 72 hours from now) on management devices during this maintenance window. Impacted: Availability to Horizon Cloud on IBM Softlayer Services (both admin and end-user access) might be impacted during this maintenance window. If you are experiencing issues in accessing our services, we would request you to wait for 30-40 minutes before you submit a support request with VMware. Service reliability is a top priority at Horizon Cloud and we are making continuous improvements to better our systems. Please visit Service Support Website at http://my.vmware.com or call Service Support Line at 1-877-4VMWARE if you need additional assistance. Additional Information and Support: VMware will provide additional updates on our Unified Status page (http://status.workspaceone.com) until this issue has been resolved. Thank You, Communication Team VMware Horizon on IBM Cloud

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Scheduled maintenance is still in progress. We will provide updates as necessary.

VMware has completed maintenance for many customer pods. We are in the process of completing maintenance for rest of the customer pods.

Scheduled maintenance is still in progress. We will provide updates as necessary.

The maintenance activity has been completed. Thank you for your patience and apologies for any inconvenience caused. Service reliability is a top priority at Horizon Cloud and we are making continuous improvements to better our systems. Additional Information and Support: Please visit Service Support Website at http://my.vmware.com or call Service Support Line at 1-877-4VMWARE if you need additional assistance.

VMware Horizon Cloud Services team is in process of applying an emergency fix to mitigate the vulnerability on Horizon Cloud on IBM Softlayer described under http://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-44228. Availability to Horizon Cloud on IBM Softlayer Services might be impacted during this maintenance window. We will keep you posted with the latest updates. Service reliability is a top priority at Horizon Cloud and we are making continuous improvements to better our systems. Please visit Service Support Website at http://my.vmware.com or call Service Support Line at 1-877-4VMWARE if you need additional assistance. Additional Information: • VMware will provide additional updates on our Unified Status page (http://status.workspaceone.com) until the maintenance activity is complete. Thank You, Communication Team VMware Horizon on IBM Cloud

Scheduled maintenance is currently in progress. We will provide updates as necessary.

VMware team has completed the maintenance.