Debian stable is stretch, released in june 2017. It's on 0.7.5 currently.
correction, I hadn't updated my server in a while, stretch itself is on 0.6.5.9 also, but stretch-backports is on 0.7.6 (not sure when that happened exactly)
> but stretch-backports is on 0.7.6 (not sure when that happened exactly)