* Fix - Ensure Vendor Managers do not see the "Sales summary" section on the dashboard. * Tweak - Bump tested up to WordPress version 6.0
* Fix - Modify column content only when the column slug is `vendors` in user list table.
* Fix - check if `wp_get_object_terms` response is `WP_Error`. * Tweak - WC 5.9 compatibility. * Tweak - WP 5.8 compatibility.
