Version 4.20.0 is a regular update that introduces a new tab in Dashboard area of the plugin, Notifications. It displays notifications to the admin, that are generated by the plugin.
The notifications are categorized into info, warning and error. Warning and error notifications are also shown in the Admin Bar to alert the admin.
The notifications can be marked as read or deleted. They may also contain actions that the admin must take.

For more details about this version's changes please visit the Release Notes of the plugin's support page.