Beginning January 12, 2016, only the most current version of Internet Explorer available for a supported operating system will receive technical supports and security updates. Internet Explorer 11 is the last version of Internet Explorer, and will continue to receive security updates, compatibility fixes, and technical support on Windows 7, Windows 8.1, and Windows 10.
13 Documents uses new technologies to provide a comprehensive web experience. Some of the newer technologies being implemented on 13 Documents are incompatible with older versions of Internet Explorer and may cause issues when using 13 Documents. For the best experience, please ensure your browser is up-to-date.
Microsoft has published a help article explaining the end of support for older versions of Internet Explorer. You may read the article by following the link provided below.