Remove ?ver=xxx from styles and scripts.

gistfile1.php

<?php 

/** Remove ?ver=xxx from styles and scripts */
function remove_cssjs_ver( $src ) {
    if( strpos( $src, '?ver=' ) )
        $src = remove_query_arg( 'ver', $src );
    return $src;
}

add_filter( 'style_loader_src', 'remove_cssjs_ver', 10, 2 );
add_filter( 'script_loader_src', 'remove_cssjs_ver', 10, 2 );

I would not recommend this. The version number (if used correctly) can be very important for ensuring the visitor does not see a cached version: http://pippinsplugins.com/uncached-script-and-style-updates/

+1 What Pippin said.

I agree, and you can also target which file you want to remove the version number, however in my specific situation, the scripts were not being read with the ?ver=xxx attached.

I wouldn't do this on my normal sites...