Open Settings
Click the Settings button in CCC's toolbar, or select Settings from the Carbon Copy Cloner menu
Select Updates
You can immediately check for updates by clicking on Check for updates now.
By default, CCC will automatically check for updates once per week. You can change this preference to day or month. To disable automatic update checking, uncheck the box next to Check for updates once per....
Do not use third-party update mechanisms
We have received numerous reports of poor update experiences when users use third-party update services, such as MacUpdate Desktop or CNET's Installer. In some cases, the third-party update services install other promotional software alongside the update, or completely mangle the update such that CCC is unusable. Please do not use these services to apply updates to CCC; use CCC's built-in software update mechanism.
Additionally, bear in mind that CCC employs a privileged helper tool to which you have granted Full Disk Access. Managing the update of that helper tool, securely, is not a task to be performed casually by software that is not intimately familiar with CCC's helper tool. Performing updates to CCC incorrectly via third-party software could expose your data to unnecessary risks.