Debian 10, codenamed "Buster", is the version of Debian that was released in July 2019. It is the successor to Debian 9 "Stretch" and the predecessor to Debian 11 "Bullseye" and includes many new features and improvements. Some of them support Wayland, which is an alternative to X.org for GUI management, new software releases including kernel 4.19, GNOME 3.30, KDE Plasma 5.14, XFCE 4.12 and many more.
The Debian 10 "Buster" distribution provides improved security and protection of user data. For example, AppArmor is used by default to isolate applications and prevent system compromise.
Debian 10 continues to be one of the most popular Linux distributions, thanks to its stability, security and large number of available software packages.