The previous release of the RaspEX Kodi OS, which brought support for the latest Raspberry Pi 4 model with 8GB RAM was based on the stable Debian GNU/Linux 10 ???Buster??? operating system series, which is also the based on the official Raspberry Pi OS. But if you want a newer base from the Debian Testing repositories, where the development of the upcoming Debian GNU/Linux 11 ???Bullseye??? operating system series takes place, there’s now a new version of the RaspEX Kodi OS based on it, as well as on the official Raspberry Pi OS.