After January 12th Microsoft officially does not support old versions of Internet Explorer. This means that no more bug fixes, updates or other patches will be released, leaving those editions vulnerable to malware and other security threats. This is also big news in the website development community (us!) because developers and designers can now be assured that everyone will be using the newest version of Internet Explorer. Old versions of IE were very prone to not displaying newer websites properly, and gave us quite a few headaches.
So… moral of the story is – if you are using Internet Explorer as a web browser, for goodness sake, upgrade to IE 11 to keep your computer safe :) Also – for reference – Google Chrome and Mozilla Firefox are MUCH better browsers!
For more information on this change, check out these articles: