Well the code has been released anyway ... the documentation update will be out sometime over the next week. The big news is that applications do not need to use file systems - raw logical volumes are supported.
Although that might have some people happy the real reason for the above is that it opened the most flexible way of supported live migration for virtual machines that are running as applications under linuxha.net. I didn't want to have to tie admins with setting up clusters file systems; raw volumes required no setup.
And live migration is working via the new "clmigrateapp" command. It typically takes 20 seconds to migrate a Xen VM - though of course to the application and it's clients there is no interruption in server - at all.
Obviously there are some particular setup requirements - so these will be documented in the admin guide - an update which should appear shortly.
