2017-05-18 13:15 GMT+02:00 Cristian Consonni <cristian@balist.es>:

I am running the relays on VPS providers so, I can choose (only) among
the versions of Debian that are provided by the services as templates.

It should be possible to upgrade to Jessie from the template. At least that is what I did on my maschine hosted as a VPS.

Sebastian