// remove wp version number from scripts and styles
function remove_css_js_version( $src ) {
    if( strpos( $src, '?ver=' ) )
        $src = remove_query_arg( 'ver', $src );
    return $src;
add_filter( 'style_loader_src', 'remove_css_js_version', 9999 );
add_filter( 'script_loader_src', 'remove_css_js_version', 9999 );

// remove wp version number from head and rss
function artisansweb_remove_version() {
    return '';
add_filter('the_generator', 'artisansweb_remove_version');
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