Q4OS is a Debian-based desktop Linux distribution designed to provide a classic user interface (Trinity) or a more modern Plasma desktop. Not demanding on system resources.
Q4OS releases based on Debian Stable are LTS versions and are supported with updates for 5 years.
The new 3.11 series gets all the fixes and goodies from the recent Debian Buster 10.4 update, critical security fixes and bug fixes, and also brings a few improvements specific to Q4OS.
Most importantly, there are many new items in the Q4OS Software Center app list. The national keyboard layout configuration has been improved. In addition to the above, Q4OS 3.11 brings other interesting enhancements such as dedicated installers for Firefox 76 and Palemoon browsers, as well as a cumulative update covering all changes since the previous stable Q4OS 3 Centaurus release.
Source: linux.org.ru