... are here: https://github.com/libguestfs/nbdkit/blob/master/docs/nbdkit-release-note... I understand that there are more API changes that we're still hoping to get into 1.22. I added a note about .default_export even though it's not yet upstream. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://people.redhat.com/~rjones/virt-df/