Internet Explorer is a component of the Windows operating system and follows the Support Lifecycle policy for the product on which it is installed. A component is defined as a set of files or features that are included with a Microsoft product, whether it is shipped with the product, included in a product service pack or update, or later made available as a web download for the product.
The newest Internet Explorer offers improved security, increased performance, better backward compatibility, and support for the modern technologies that power today’s websites and services. Microsoft encourages customers to upgrade and stay up-to-date on the latest browser for a faster, more secure browsing experience.
Beginning January 12, 2016, only the most current version of Internet Explorer available for a supported operating system will receive technical support and security updates.
For the full list of supported operating systems and Internet Explorer versions, please visit the Internet Explorer Support Lifecycle Policy FAQ at: https://support.microsoft.com/en-us/gp/microsoft-internet-explorer.