Notify, or optionally block, site visitors that they are using an outdated web browser, so you can use html5, css3, etc. freely.
<?php wp_head() ?>and
<?php wp_footer() ?>action hooks
Requires: 3.3.0 or higher
Compatible up to: 3.5.2
Last Updated: 2013-9-4
0 of 1 support threads in the last two months have been resolved.
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