For security, stability, and performance reasons, Canto will no longer support Microsoft Internet Explorer 11 after December 31st, 2020!
Please see the following link for the end of support announcement by Microsoft - https://docs.microsoft.com/en-us/lifecycle/announcements/internet-explorer-11-support-end-dates.
You may still use IE 11 after December 31st, 2020 and Canto may still run but we officially don't support it any longer which means that any issues - you encounter with Canto while using IE 11 - will not be addressed anymore.
Microsoft suggests switching to the successor of IE 11, called Edge.
You can read more about the new Microsoft browser and download Edge here: https://www.microsoft.com/en-us/edge