Known as Yakkety Yak, the release is based on the 4.8 kernel and has made the switch to gcc-6. But most of the changes are incremental, with the big changes having come in April in 16.04.
The latest releases of the popular desktop environments such as KDE Plasma, GNOME, and LXDE are all present.
Ubuntu has a number of sister distributions which feature different DEs as the default: Kubuntu, Lubuntu, Ubuntu GNOME, Ubuntu Kylin, Ubuntu MATE, Ubuntu Studio and Xubuntu have all been released as well.
Also released is the Ubuntu Server that includes the Newton release of OpenStack. There are also deployment and management tools to save devops teams time when deploying distributed applications on private and public clouds, x86, ARM, or POWER servers, z System mainframes, or on developer laptops.
Several key server technologies, from MAAS to juju, have been updated to new upstream versions with a variety of new features.
The company behind Ubuntu, Canonical, will provide maintenance updates for 16.10 for nine months. Version 16.04 is the current long-term stable version and updates for that will be issued for three years from release, which was in April.
There is no indication yet as to what the next release will be named.