Version 3.9.23 FAQ
From Joomla! Documentation
These FAQs are specific to the Joomla! 3.9.23 release. Only issues that are specific to this release will be listed here, together with suggested resolutions. Please add information to this resource. The Joomla! Bug Squad will watch over this page to ensure any new bugs are added to the tracker and resolved. Continue to use the Joomla! Forums for support requests as this is not a substitute for posting there, but rather a common location for the community to gather common release issues.
Bug Squad members, please use the form to the right to create a FAQ page quickly. Try not to use the maintenance version of Joomla in the title as the bug may effect more than one version.