Internet Explorer Life Cycle

General Considerations about Lifecycle in a Product
Microsoft Support Lifecycle policy provides consistent and predictable guidelines for product support availability when a product releases and throughout that product’s life. By understanding the product support available, customers are better able to maximize the management of their IT investments and strategically plan for a successful IT future.
For further references, you can verify: Microsoft Support Lifecycle
For updates, you can verify the Microsoft Policy Disclaimer and Change Notice

Where is Internet Explorer nowadays?
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.
Internet Explorer 11 offers improved security, increased performance, better backward compatibility, and support for the web standards 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.
So, after January 12th, 2016, Microsoft will no longer provide security updates or technical support for older versions of Internet Explorer. Security updates patch vulnerabilities that may be exploited by malware, helping to keep users and their data safer. Regular security updates help protect computers from malicious attacks, so upgrading and staying current is important.

Internet Explorer End Of Support Read the Windows lifecycle FAQ sheet to learn more

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