Where applicable, the above Citrix products were tested with below updates.

Known Issues

• After installing September 2026 security updates, a black screen may be seen during login Or new connections start hanging after a reboot with 'Connecting...' message. More information at CTX697101 - Issues with Microsoft Windows September 2026 Update
• Windows 11 VDAs provisioned by MCS with Machine Identity Isolation feature enabled, users may face sign‑in failures due to the domain trust relationship being lost. Machine Identity Isolation feature is not supported by Citrix. More information available on Windows 11 - Citrix Known Issues

Note:

• Patches for Operating Systems (E.g. Windows Vista, Server 2008, Server 2012, Server 2016, Windows 10 v1507, SQL Server 2016 etc) and products (E.g. Office Web Apps, Online Server, SharePoint, Dynamics 365 etc) that are not listed above were not validated. 

• LTSC releases of Windows like Windows 11 Enterprise LTSC 2024 & Windows 10 21H2 2021 LTSC are NOT tested. Their GA release counterparts Windows 11 24H2 & Windows 10 22H2 Update share the same security updates and are being tested as called in the above table. The corresponding security updates are expected to work for LTSC versions also. For list of supported OS’s for Citrix Virtual Apps and Desktops refer to CTX224843 - Windows 10 & 11 Compatibility with Citrix Virtual Desktops (XenDesktop) 

Visit the Microsoft Security Response Center (MSRC) page to view Microsoft security updates. 

Citrix is not responsible for and does not endorse or accept any responsibility for the contents or your use of these third party Web sites. Citrix is providing these links to you only as a convenience, and the inclusion of any link does not imply endorsement by Citrix of the linked Web site. It is your responsibility to take precautions to ensure that whatever Web site you use is free of viruses or other harmful items.

Microsoft’s September 2026 security updates have passed Citrix testing (the updates are listed below). The testing is not all-inclusive; all tests are executed against English only environments and issues may still be found upon implementation. Follow best practices for testing and installing software updates/patches in a development environment before implementing the updates in a production environment. 

• Virtual Apps and Desktops 7 2203 CU7 LTSR 

• Virtual Apps and Desktops 7 2402 CU4 LTSR  

• Virtual Apps and Desktops 7 2507 CU2 LTSR 

• Virtual Apps and Desktops 7 2607 LTSR

Citrix Interoperability Validation