To be completed by the original poster:
CMS Version
Xibo CMS 4.2.1
Installation Method
Windows Server 2022 - IIS
Operating System
Windows Server 2022 Standard
Issue
I’m installing the new release of Xibo CMS 4.2.1 to Windows Server 2022 - IIS. I managed to get all functioanalities working, however, when I launched install pages of the CMS, I can see that there is new extension called “GNUPG” that is required to be enabled in order to proceed with Xibo CMS installation. I did some some search on the internet and I cannot find and php_gnupg.dll that I can add to php\ext folder and then refer to it in php.ini
It seems also that this extension is not available for Windows. You can see the screenshot of XIBO install page below