Daily build images were published a few days later after that date and were initially based on the Ubuntu 16.10 (Yakkety Yak) repository, but as Canonical’s engineers never rest, they manage to bring all the latest Open Source software applications and GNU/Linux technologies to Ubuntu 17.04 (Zesty Zapus). These include Linux kernel 4.9.0, Mesa 13.0.2 3D Graphics Library, systemd 232, GCC (GNU Compiler Collection) 6.3.0, support for IPP Everywhere Apple AirPrint compatible printers a.k.a. driverless printing, various improvements to the Unity 8 interface, which is still available as a preview, and some packages from the GNOME 3.22 Stack.