Ubuntu 17.10 Artful Aardvark is expected to be released today October 19, with changes that may distract some distribution friends. Canonical's new operating system leaves the familiar Unity interface for GNOME 3.
Gnome 3.26.1 will be the default surface of Artful Aardvark, and will run through the Wayland display server.
But those who want to use the X11 display server, instead of Wayland there will be the option "Ubuntu on Xorg" through screen connections GDM (GNOME Display Manager). Among the options will be the vanilla GNOME 3.26 session without the modifications made by Canonical, but also the old Unity desktop.
So then in a while you will be able to download the operating system Ubuntu 17.10, but only for 64 bit computers, as Canonical decided to stop supporting 32 bit installations, although existing installations will still be supported with upgrades until the end of their life.
Ubuntu 17.10 is powered by Linux 4.13.4 kernel, which could soon be upgraded to a newer version once the OS is released system.
Of course, if you are using older versions such as Ubuntu 17.04 (Zesty Zapus) or Ubuntu 16.04 LTS (Xenial Xerus), you can upgrade to Ubuntu 17.10 as soon as it is officially released.
Kalispera eixa xubuntu ekane update se xubuntu 17.10 mou zhtaei kwdiko prosvashs pataw kai den mpainei.
try a switch from Xorg to Wayland or vice versa. If it does not recognize your password you will probably need to change it
https://askubuntu.com/questions/24006/how-do-i-reset-a-lost-administrative-password