The website is updated and the update 1.9.2.8 is now published.
If you launch 1.9.2.2 or above, you'll be informed about the update 1.9.2.8 (provided the option 'Check For Updates' is active). Otherwise you will have to click 'Check for updates'.
On a version below 1.9.2.2 the full setup will be downloaded and installed, of course by overwriting all settings made before.You will also have to re-register in this case.
Change Log is available here...
https://www.pointsoftware.de/proatcx_e/download.html (https://www.pointsoftware.de/proatcx_e/download.html)