Each time Matthew brings this up, and as evidence continues to mount that Canonical either actually intends their IP policy to be read that way, or is intentionally keeping the situation unclear to FUD derivatives, I start wondering about references to Ubuntu in my software.
A developer from Canonical Ltd said yesterday that the latest version of the Ubuntu 14.04 OS has been released. Ubuntu 14.04 is a LTS version of the OS which means that it will receive support for a long time. Users who are still using the previous versions can download the Live and install-able ISO images and update it to the latest version. The update has not only been rolled out for Ubuntu 14.04. Users of Kubuntu 14.04 LTS, Edubuntu 14.04, Mythbuntu 14.04 LTS, Ubuntu GNOME 14.04 LTS, Ubuntu Kylin 14.04 LTS, Ubuntu Studio 14.04 LTS, Lubuntu 14.04 LTS, and Xubuntu 14.04 LTS can also make use of the downloadable images.
Canonical is planning to build ZFS, the resilient combined file system and logical volume manager originally developed by Sun Microsystems, into its forthcoming 16.04 release of the Ubuntu operating system, codenamed "Xenial Xerus".
Support for OpenZFS was added as a technical preview to Ubuntu 15.10, which was formally released at the beginning of May 2015. Users will still need to download and install the appropriate package, though - zfsutils-linux.