With reference to lines 135-140 in functions.php, it is usually a good idea to support only three major WordPress versions behind current version. This encourages users to update their WordPress site too. Since title tags were introduced in WordPress version 4.1, the mentioned lines of code is recommend to be removed.
functions.php
, it is usually a good idea to support only three major WordPress versions behind current version. This encourages users to update their WordPress site too. Since title tags were introduced in WordPress version 4.1, the mentioned lines of code is recommend to be removed.