The Kunena team has announce the arrival of Kunena 5.2.8 [K 5.2.8] which is now available for download as a native Joomla extension for J! 3.10/3.9.x. This version addresses most of the issues that were discovered in K 5.2 and issues discovered during the development stages of previous version of K5.2.

If you are using blue template you need to update to 1.6.7 version to ensure to have a compatible version with K5.2.8.

Important note: (07 Jan 2022) If you have created a Kunena custom.css, create a backup of it. Due to an error, this file will be deleted during an upgrade.