Hello,
1. If you have the same problems as described in those patches, you can apply them all. In general, all those patches will be used in the next update by default.
2. Define the code below in the functions.php file in your child theme.
function child_google_analytics() {
?>
<!-- Paste your Google Analytics code here and remove this message -->
<?php
}
add_action('wp_head', 'child_google_analytics');
Kind Regards
3. The same Google track code as from 2 point?
Kind Regards