Joomla 3.8.9 has been released. This update address two low level security issues & includes 50 bug fixes and minor enhancements.
You are recommended to upgrade your Joomla website to ensure it remains secure.
Joomla has released update 3.8.10 to fix a bug introduced on windows servers in release 3.8.9. Update to version 3.8.10 asap.