Release Notes

ThinOS 9.0.1136
Release summary
Dell Wyse ThinOS software is designed to run on a broad array of Dell Wyse hardware platforms. New releases are created to
support the existing hardware platforms, correct defects, make enhancements, or add new features. These releases are tested
and supported on shipping hardware platforms.
ThinOS 9.0 is a Citrix-specific release, which integrates Citrix Workspace app. Other Broker agent connections such as
VMware, RDP, and Amazon WorkSpaces are not supported in this release. ThinOS 9.0 does not support the usage of INI
parameters. You must use either Wyse Management Suite or the local Admin Policy Tool to manage your systems.
Version
ThinOS 9.0.1136
Release date
March 2020
Importance
Recommended: It is recommended to apply this update during your next scheduled update cycle. The update contains feature
enhancements or changes that help keep your system software current and compatible with other system modules (firmware,
BIOS, drivers, and software).
Firmware upgrade
Use the Wyse Management Suite version 2.0 to upgrade your ThinOS 8.6-based thin clients to ThinOS 9.0. It is recommended
to use Wyse Management Suite for large deployments. You can also use the USB Imaging Tool version 3.3 to install the ThinOS
9.0 Merlin image on a single device.
NOTE: You cannot upgrade the ThinOS 8.6 clients with PCoIP as ThinOS 9.0 does not support PCoIP devices.
For more information about how to upgrade from ThinOS 8.6 firmware to ThinOS 9.0, see the Dell Wyse ThinOS Version 9.0
Migration Guide at www.dell.com/support.
NOTE:
After you upgrade to ThinOS 9.0, you cannot use the Wyse Management Suite method to downgrade to ThinOS
8.6. You must use the USB Imaging Tool method with Merlin images to downgrade to ThinOS 8.6.
Other documents you may need
In addition to this Release Notes, you can access the following guides available at www.dell.com/support/manuals.
The Dell Wyse ThinOS Version 9.0 Administrator's Guide provides information about using the ThinOS desktop, configuring
the Broker agent connections, and troubleshooting your thin client.
The Dell Wyse ThinOS Version 9.0 Migration Guide provides information about downloading the ThinOS 9.0 firmware from
the Dell support site, and how to upgrade from ThinOS 8.6 firmware to ThinOS 9.0.
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