The SISU Ultima updater script has been created.
Download this Full software update and run it. After rebooting the system, the shortcut will appear on the desktop.

SISU Updater
Next, when the updater is launched, the availability of the new version of SISU will be automatically checked on this software page and, if available, the update will be downloaded and installed. The Stardex Ultima device must be connected to the Internet.
The instructions regarding custom test plans remain in effect. The script simply downloads and installs the latest update.
(Starting with version 4.1.0, there’s nothing to worry about, just use the updater).