Hi all, I just thought I'd report that I recently did a successful "do-release-upgrade -d" to upgrade my Ubuntu 14.04 vps to 16.04. There were a few snags but they were of my own making (e.g. failed mysql reconfigure due to me moving the data directory and apparmor complaining). Then tonight I decided to migrate from i386 to amd64 using this guide: http://www.ewan.cc/?q=node/132 It worked fine. The main reason for changing architecture was wanting to use repos provided by powerdns and some other projects which only have 64 bit packages. Cheers, Roger