Dell Wyse ThinOS Version 9.1.4097, 9.1.4234, 9.1.5067, and 9.1.6108 Operating System Release Notes

Citrix Workspace app updates

• Citrix Workspace app package version is updated to 21.9.0.25.1. This package is intended for users who want to install the Citrix Workspace app version 2109 on ThinOS.
• HDX RealTime Media Engine (RTME) within the Citrix Workspace app 2109 package is updated to version 2.9.400.
• Session reliability enhancement—The screen changes when session reliability begins. The session window is disabled and a countdown timer with the time until the next reconnection attempt is displayed.
  NOTE:This feature is only supported on Citrix Virtual Desktops. For more information, see the Citrix documentation at docs.citrix.com.
• Update the HID fingerprint reader to fix the issue where the ICA session does not launch after you upgrade Citrix Workspace app version 2106 to version 2109 or if you uninstall and reinstall Citrix Workspace app version 2109. See, HID fingerprint reader updates.

Citrix Workspace app limitations and known issues

• Keyboard Layout Mode = Server Default in CWA2109 is not working. This issue is also observed in the Citrix Workspace app Linux binary.
• Battery status does not appear on a desktop session that is launched from Wyse 5470 Thin Client. This issue is also observed in the Citrix Workspace app Linux binary.
• Citrix session gets disconnected if Adaptive Audio is enabled when you connect to a VDI desktop that runs on Citrix VDA 2109. You must disable Adaptive Audio function to connect to Citrix VDA 2109 desktop.
  • If you are using Desktop Delivery Controller (DDC) version 2109, you can find the Adaptive Audio policy, and disable it using the policy settings.
  • If you are using DDC version 1912, change the registry value of REG_DWORD EnableAdaptiveAudio to 0 in the following registry paths:
    • Desktop VDA (Windows 10)—HKLM\Software\Citrix\Audio
    • Server VDA (Server 2016\2019)—HKLM\Software\WOW6432Node\Citrix\Audio
• Users are not able to share screen while using Microsoft Teams in Citrix VDA 2109 with Citrix Workspace app 2106 for Linux.
• The following new features from Citrix Workspace app 2108 and Citrix Workspace app 2109 are not supported:
  • Enhancement to logging—ThinOS does not provide the collectlog.py tool that lets you collect the log files from different folders.
  • Service continuity
  • Support for Service continuity with Citrix Workspace Web Extension for Google Chrome
  • Storebrowse enhancement for service continuity
  • Global App Config Service (Public Technical Preview)
  • Creating custom user‑agent strings in network request
  • Feature flag management
  • App protection—App protection component is not installed during Citrix Workspace app package installation in ThinOS. Hence, the App protection feature is not supported in ThinOS. If you continue to enable App protection for Citrix delivery group, you cannot see the published resources in thin client. This limitation is a known issue in ThinOS. In Citrix Workspace app for Linux, the published resources can be seen, however, if you try to launch protected resources, the client displays a warning message.
  • Adaptive audio—Citrix session gets disconnected if Adaptive Audio is enabled when you connect to a VDI desktop that runs on Citrix VDA 2109. You must disable Adaptive Audio function to connect to Citrix VDA 2109 desktop.
• EDT MTU discovery feature is not qualified by Dell Technologies—MTU Discovery is enabled by default. For more information, see the Citrix documentation at docs.citrix.com.