Joomla! 3.9.1 Bug Fix Release announced
UPDATE sooner rather than later
Joomla! 3.9.1 is a Bug Fix Release.
This release includes more than 40 bug fixes as well as several useful improvements following the recent release of Joomla! 3.9 'Privacy Suite'.
More details at the following link.
Read more: Joomla! 3.9.1 Release News.
Back up before updating is highly recommended
Protect your assets.
Perform a FULL backup of your website (database and files) BEFORE updating the Joomla! CMS and/or its extensions.
Read more: How to back up your website.
Read more: How to update your Joomla! CMS & its extensions.