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Check which OS version is recommended for the new TOA software version from the installer. With version 5.0 we generally support macOS Monterey or higher, which you can download from Apple directly.
Otherwise, go to the Apple Menu select System Preferences and there select Software Updates.
Make sure to install all available updates for your software until there are no updates left.
Install the latest Video device driver version and all other drivers you may have to update.
Restart the Mac and make sure the Firmware of your Video device is the latest version available.
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Once the new version has finished copying, start Just Connect and Just Control.
Follow the instructions in chapter 13.2 Activation to activate the new version.
If required, restart Just Connect
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