From now, I will see about proposing backported packages only for important
versions (such as the 1.x.0 and if there's a big changelog between 2
versions), because sometimes, the Nginx developers are very speedy to
release 2 versions in a small amount of time, and I don't think backports
are here to support quick updates (unstable and experimental are for this).
I see no problem with important versions only, but please take care
about backporting fixes for important bugs, especially security
related ones.