Some additional informations. See linked document:

http://www.debian.org/doc/packaging-manuals/upgrading-checklist.txt

Standard-Versions should be an informal Field in the control, the 
compatibility thingies should be handled with the compat level.
The compat-level shoud be 7 for all not multiarch versions, 8 for 
oneiric and 9 for later versions.

Am 31.01.2013 17:10, schrieb Alexander Sokolov:
>
> In distr/deb/debian/control:
>
> > @@ -47,15 +47,16 @@ Build-Depends: pkg-config,
> >  %endif
> >      zlib1g-dev,
> >      libstatgrab-dev,
> > -    libsensors4-dev
> > -Standards-Version: 3.9.1
>
> May this change break compatability? Now we build razor for
>
>   * Ubuntu: lucid, maverick, natty, oneiric, precise quantal
>   * Debian: lenny, etch, squeeze
>
> Do you know what standard versions the old distros are supports?
>
> —
> Reply to this email directly or view it on GitHub 
> <https://github.com/Razor-qt/razor-qt/pull/549/files#r2845602>.
>