Joomla! 3.9.11 Security Release announced
Joomla! 3.9.11 is a Security Release which addresses ONE security vulnerability.
This release also includes several improvements.
See the Release Notes at the link below.
Core - Hardening com_contact contact form (affecting Joomla 1.6.2 through 3.9.10)
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.