Hi again, I decided to create a brand new plugin to manage custom Admin Notices. My needs was to be able to display notices to targeted users roles and of course, enable them to permanently dismiss a notice after it’s read. And being able to keep track of which notices has been made.
This is a tool to help WP websites management, so I added some cool functions like Send Email, Show/hide Notices titles and full-HTML support, possibility to activate comments, add tags, choose one of the 4 built-in WP admin notices colors. To keep track of the context when a notice was sent, some installation infos are kept alongside with the notice, eg: installed plugins list and versions, installed theme and version, etc.
It’s available now on WP.org here if you want to give a try: KJM Admin Notices