Currently, the Kunena Team has just been released Kunena 4.0.11 for a security purpose with 13 issues fixed.

The important changes in this version:

Before installing or updating this version, please read the change logs carefully and have a test first.

Importantly, we highly recommend you to backup your site before changing anything. This work will ensure that no matter what happens with your site, it will be restored back to the first status. In addition, it helps you to save the custom file if there is some.

You can use Akeeba back-up tool. Here is the instructions for back-up process.

For more details information about the new Kunena version, you can check HERE. Thanks for reading!