To find the current browser version information you have:
- When Internet Explorer is the active application, click on the ‘Tools’ menu on the toolbar of your browser.
- Click ‘About Internet Explorer’, at the bottom of the drop down menu.
You will see the version number listed in the small pop up box.
NOTE: Microsoft will no long support Internet Explorer as of August 17, 2021.
source: https://www.theverge.com/2020/8/17/21372487/microsoft-internet-explorer-11-support-end-365-legacy-edge