Unsupported Operating Systems

When performing various updates for website encryption you must make decisions about what protocols and ciphers you use.  SSLLabs.com has a great resource for this as it shows you what protocol a particular OS requires.  In order to harden your site from weak ciphers, you must make decisions as to what operating systems you need to disable.  Its one thing if we’re talking Windows 3.11 vs one of the most recent operating systems.

This is a really good general sites to identify upcoming EOL:
http://www.upcomingeol.com/home
https://endoflife.software/

Android Supported Operating Systems:
https://en.wikipedia.org/wiki/Android_version_history

Microsoft Operating Systems:
https://support.microsoft.com/en-us/lifecycle/search
https://support.microsoft.com/en-us/help/13853/windows-lifecycle-fact-sheet

Safari Version Support:
https://en.wikipedia.org/wiki/Safari_version_history

Internet Explorer Version Support:
https://en.wikipedia.org/wiki/Internet_Explorer_version_history

Java Version Support:
http://www.oracle.com/technetwork/java/javase/eol-135779.html
https://en.wikipedia.org/wiki/Java_version_history