On December 6, Debian 11 installer alpha 3 has been released. As I wanted to install Debian to my new laptop machine Panasonic CF-SV9, I tried it. The result: fine. Debian 11's Gnome desktop environment is running on my new machine now. I am keeping pre-isntalled Windows 10 pro, and the machine is Windows and Linux dual booting machine. The installer seems matured, inspite of its version name. But there is one drawback remaining. The circular pad built-in is not working correctly inspite of xorg synaptics input device settings written in /etc/X11/xorg.conf. It may be caused that the graphic is now under control of wayland, in place of Xorg server in my buster machine. If you want to follow me, please take care of Windows 10's BitLocker. It will demand recovery key after your installation of Debian. Take some backups of the recovery key before hand.