Depends on your user base.  In my current application&#x2F;site, our IE &lt; 11 userbase combined is under 5% and declining.  IE8 has already been dropped, and IE9 soon.  The product I work on is directly related to customer acquisition at a financial institution.  So I&#x27;d say it&#x27;s a pretty safe bet the numbers have been run thoroughly.<p>disclaimer: my opinions are my own and do not necessarily reflect those of my employer.