Heads Up CTX238758 Windows 10 v1903 and v1909 – Citrix Known Issues Article | 21 found this helpful | Created: 08 Oct 2018 | Modified: 31 Mar 2020 https://support.citrix.com/article/CTX238758> Issue 7 Issue Description On Windows 10 v1903 end point with Receiver/Workspace App, when a network interruption is caused using Firewall, Session Reliability feature fails to work. [RFWIN-15263] Problem Cause Changes in Windows 10 v1903 Operating System is making the Session Reliability to fall back to Auto Client Reconnect as soon as the network is disrupted. Solution There is no solution. Citrix is working with Microsoft to resolve this issue.   From <https://support.citrix.com/article/CTX238758>       Enablement Packages This Windows 10 version 1909 release is a bit different from prior releases because the upgrade process from Windows 10 version 1903 is said to be faster. The upgrade process is akin to the monthly "cumulative update" patch process, and it'll require just one reboot to take effect, Microsoft promised. However, the faster upgrade process only applies to Windows 10 version 1903 users because that OS contains a so-called "enablement package." Essentially, the enablement package already contains the new features of Windows 10 version 1909 but they are inactive. Here's how Microsoft explained that nuance in another announcement: Windows 10, versions 1903 and 1909 share a common core operating system with an identical set of system files. As a result, the new features in Windows 10, version 1909 were included in the latest monthly quality update for Windows 10, version 1903 (released October 8, 2019), but are currently in a dormant/disabled state. These new features will remain dormant until they are turned on via an "enablement package," a small, quick-to-install "master switch" that simply activates the Windows 10, version 1909 features. All other versions of Windows 10 that are older than Windows 10 version 1903 still follow the slower upgrade process because they don't contain the enablement package, which, in its dormant state takes up "less than 25MB" of storage space on PCs. Systems upgrading to Windows 10 version 1909 will report that "build 18363" is installed. However, because of the common baseline shared with Windows 10 version 1903, "individual system file versions will still appear as [build] 18362," Microsoft's announcement explained.   From <https://redmondmag.com/articles/2019/11/12/windows-10-version-1909-released.aspx>   In the bottom LH side of your Windows 10 screen in the search type     winver Then just open it up and screen or record the Highlighted Windows 10 Version line.