Comment 2 for bug 1644235

dm-writeboost was successfully synced from Debian to the current Ubuntu development version, Zesty, so I'm marking this as fix released.

I've also taken the liberty to mark the two other upgrade requests as fixed. Normally, new versions are only added to the development version, but if there are critical issues with known patches which should be fixed in older releases please see https://wiki.ubuntu.com/StableReleaseUpdates#Procedure. Alternatively, it is possible to get a backport of a newer version to an older Ubuntu release, see https://wiki.ubuntu.com/UbuntuBackports#Requesting_a_Backport for more information.