Release Notes
Table Of Contents
- Dell Wyse ThinOS Version 9.1 Operating System Release Notes
- Contents
- Overview
- ThinOS 9.1.3112
- ThinOS 9.1.2101
- Release summary
- Firmware upgrade
- Compatibility
- New and enhanced features
- Flash protection reliability
- Keyboard layout updates
- New options added for Customize Privilege Level
- Supports external secure MQTT for Wyse Management Suite server
- New background picture for ThinOS
- Shutdown menu update
- Display port audio design enhancement
- Poly EagleEye Mini webcam support
- VNC password restriction
- Proxy
- Citrix Workspace App update
- Microsoft Direct Remote Desktop Protocol updates
- Windows Virtual Desktop
- HID fingerprint reader support
- Imprivata updates
- Teradici cloud access updates
- Supports the Bloomberg keyboard
- Important notes
- Limitations
- Tested environments matrix
- Tested peripherals
- Tested smart cards
- Known issues
- Fixed issues
- ThinOS 9.1.1131
- Upgrade to ThinOS 9.1 from ThinOS 8.6
- Compatibility
- ThinOS 9.1 and ThinOS 8.6 feature comparison
- New and enhanced features
- New ThinOS features
- Admin Policy Tool
- Admin Policy Tool feature list
- Support for Wyse Management Suite 3.1
- Smart card sign-in
- Enhanced User Interface
- Account privileges
- Change group notice
- Download notice
- New system tray items
- New DHCP option tag
- Captive portal detection for wireless
- EPOS connect headset support
- Jabra Xpress headset support
- Install the operating system image and packages using Admin Policy Tool
- New Citrix features
- Citrix multiple virtual channels
- Microsoft Teams optimization
- Microsoft Teams optimization feature matrix
- Microsoft Teams optimization limitations
- Zoom optimization on Citrix
- Zoom optimization feature matrix
- Zoom optimization known issues
- Cisco Webex Teams optimization
- Cisco Webex Teams optimization on Citrix Workspace app feature matrix
- Cisco Webex Teams optimization known issues
- Cisco webex meetings optimization
- Cisco Webex Meetings optimization feature matrix
- Cisco Webex Meetings optimization known issues
- Cisco Jabber Softphone for VDI
- Cisco Jabber Softphone for VDI support matrix
- Cisco Jabber Softphone for VDI limitations
- Federated Authentication (SAML/Azure AD)
- Browser Content Redirection
- Citrix HDX Adaptive transport (EDT)
- HDX Adaptive Display V2
- Citrix ADC Native OTP
- Autoconfiguration of email-based account discovery using DNS
- Desktop Viewer/Toolbar
- Workspace mode
- Citrix printer update limitations
- Citrix printer update
- Keyboard Layout Mode
- VMware Horizon
- VMware Horizon Management and configuration
- Unified Access Gateway
- Scanner redirection
- Serial ports redirection
- FIPS-140-2 mode
- Session collaboration
- Battery state redirection
- Workspace ONE mode
- Relative mouse
- Limitations for VMware Horizon
- Zoom optimization on VMware
- Zoom optimization on VMware feature matrix
- Zoom optimization known issues
- Cisco Webex Teams optimization on VMware
- Cisco Webex Teams optimization on VMware feature matrix
- Cisco Webex Teams optimization known issues
- Cisco Jabber Softphone for VDI on VMware
- Cisco Jabber Softphone for VDI support matrix on VMware
- Cisco Jabber Softphone for VDI limitations on VMware
- Microsoft Teams on VMware
- Microsoft Windows Virtual Desktop and Remote Desktop Services
- Teradici Cloud Access and Amazon Workspaces
- Imprivata
- Identity automation
- New ThinOS features
- Changes from ThinOS 8.6
- What is removed compared to ThinOS 8.6
- Important notes
- Tested environments matrix
- Tested peripherals matrix
- Fixed issues
- Known issues
- Citrix Workspace app 2106 package for ThinOS
- Citrix Workspace app 2104 package for ThinOS
- Resources and support
- Contacting Dell
Table 57. Microsoft Teams optimization feature matrix (continued)
Scenario ThinOS
Audio or video call in VDI server desktop Supported
Audio or video call in published Microsoft Teams application Supported
Devices—Plug in or disconnect the headset Supported—Headsets can be automatically selected when
you connect a new headset during the call or meeting.
Teams use the default audio device that is configured by
ThinOS client. If the headset is selected as default, it shows
a default: label in Teams device settings. If you plug in a
webcam with mic, the mic on the webcam gets selected. You
can manually select the audio device in Teams device settings.
Devices—Switch headset Limited support—If you install JVDI package in ThinOS,
the switched headset does not work. Dell Technologies
recommends to not install JVDI package if you are using
Microsoft Teams.
Devices—Plug in or disconnect the camera Supported
Devices—Switch camera Not supported—This is a known Citrix issue.
Headset buttons—Answer/Mute/End Call Limited support—The Answer/End call button is not
supported. This is a Citrix Workspace app limitation.
Microsoft Teams optimization limitations
● Following features are not supported on Wyse 3040 Thin Clients due to client resource limitations:
○ Video call or meeting
○ Share screen
To avoid audio choppy issues during the audio call or meeting, users are recommended not to perform the following tasks:
○ Move the application window frequently or quickly.
○ Scroll down the Microsoft PowerPoint slide, Word document, Excel sheet, or a website page frequently or quickly.
○ Play a video in an ICA session frequently.
● Video call and share screen features are recommended on Wyse 5070 Thin Clients, 5470 Thin Clients, and Wyse 5470
All-in-One Thin Clients with known issues.
○ The audio gets distorted during a meeting when you share screen from thin client to a laptop or desktop that uses native
Microsoft Teams. There is no workaround right now and the issue is being worked on.
○ The audio gets distorted during a meeting when all the participants mute while the screen presenter is sharing the
screen or the camera, with audio. Workaround is to ensure that at least one participant has not muted while the screen
presenter is sharing screen or has the camera enabled.
○ When users share screen in a Teams meeting between Wyse 5070 thin clients or Wyse 5470 thin clients, the audio gets
distorted while talking.
○ The audio gets distorted when you play HTML5 videos using Browser Content Redirection in the shared screen when in a
meeting.
○ The audio gets distorted when you browse a website with multiple figures in the browser while sharing screen.
○ The audio gets distorted occasionally on a thin client with dual core CPU.
● Other known issues for CWA Teams Optimization
○ Depending on your network bandwidth latency, the audio quality may fluctuate. To avoid this issue, ensure that your
network bandwidth is adequate for audio or video call. Citrix recommends 200 kbps or higher network speed for a single
client.
○ Switching cameras during a Microsoft Teams call in not recommended. This issue is a known Citrix Workspace App
limitation [Case number 80109986].
○ Session termination or abrupt disconnect may result in unexpected HdxRtcEngine.exe processing exits. This issue is a
known Citrix Workspace App limitation [RFLNX-5885].
○ Audio is still played through the first headset when you switch to the second headset during the call. This issue is
observed when you have installed the JVDI package on the thin client. Workaround is that if you are using Microsoft
Teams (or Zoom), do not install the Cisco JVDI package. This issue is due to Cisco limitation.
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ThinOS 9.1.1131