Release Notes

Table 4. BIOS details (continued)
Platform name BIOS version
Wyse 5470 Thin Client 1.4.0
Wyse 5470 All-in-One Thin Client 1.5.2
New and enhanced features
The Citrix package on ThinOS is updated to version 2006_1146. The following are the feature enhancements in the Citrix
package v2006_1146:
● Session printer updates
In this release, the Citrix session printer support has been expanded to support all the client printer redirection functionality
that is available in ThinOS v8.6. Based on the Citrix Host Printer Policy settings, ThinOS 9.0 supports the following:
○ Device-Specific Printer Driver support—This method allows Citrix hosts to automatically create client redirected
printer queues based on the peripheral management printers settings of the ThinOS client. The following details are used
by the host print manager to automatically create the printer queues:
￭ Name—Printer queue name
￭ Printer ID (Printer Identification)—Printer driver name
○ Citrix Universal Print Driver support—This method allows Citrix hosts to automatically create printer queues based
on the peripheral management printers settings of the ThinOS client. The following details are used by the host print
manager to automatically create the printer queues:
￭ Name—Printer queue name
￭ Class—Printer class that is associated by the Citrix host registry to a printer-specific driver name
NOTE:
ThinOS 8.6 supports the association of PS, PCL5, and PCL4 classes. However, ThinOS 9.0 associations are
limited to the PS class only.
Limitations
○ The ThinOS solution to support the client printer redirection functionality is limited to Type 3 printers only. However, the
solution is subject to changes in the future according to the changes made by Citrix.
○ After you connect a USB printer to the thin client, the Printer ID information is not automatically displayed in the ThinOS
client Peripheral Management Printer settings menu. This limitation will be resolved in future ThinOS releases.
○ ThinOS supports only PS class when using the Citrix Universal Print Driver policy to automatically create ThinOS client
redirected printers. PCL5 and PCL4 classes are not supported. This is a Citrix limitation.
● Keyboard layout synchronization in VDA
In Citrix Workspace app, the Keyboard Dynamic synchronization mode functions differently on a Linux client from a Windows
client. In general, on a Linux client, the keyboard output follows the client keyboard layout, which is different from the
Windows VDA layout. Windows clients follow Windows VDA layout which is same as the Windows client keyboard layout. If a
Linux client keyboard is synchronized to VDA, users may observe unpredictable output when working in a Windows VDA with
a keyboard output that follows the Linux client keyboard layout. Also, in dynamic synchronization mode, Citrix Workspace
app for Linux does not support VDA users to switch the keyboard layout inside a VDA session.
In the server default mode, both Linux and Windows use the session (VDA) side keyboard layout with predictable output. In
this release, ThinOS has a customized Citrix package where the keyboard layout is set to server default mode, for the
predictable output. The keyboard layout that you select on the thin client is not automatically synchronized in the VDA
session. VDA users must select or switch the keyboard layout inside the VDA session using the Windows Input Method Editor
(IME) language bar.
As a VDA administrator, you must configure the VDA desktop with the required keyboard language layout options. The IME
language bar must be enabled on the Windows lock screen. This enables the VDA user to select the appropriate keyboard
language layout on the Windows lock screen.
In scenarios such as opening a new application in a VDA session, locking, or unlocking the VDA session, the keyboard layout
falls back to the VDA default layout. For example, EN_US. This is a known issue for a Linux client in the server default
mode.
You can customize VDA registry settings for a consistent keyboard layout in the VDA session.
○ For a desktop operating system VDA, the feature is enabled by default.
○ For a server operating system VDA, you can enable the feature using the system registry.
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ThinOS 9.0.4024