Bug#917566: lintian: please warn about non-supported previous versions

[Chris Lamb <lamby@debian.org>]

tags 917566 + moreinfo
thanks

Dmitry,

> As far as I know [citation needed], Debian only supports upgrades of
> consequenced releases -- it means that maintainer is not obliged to make
> sure that Debian 8 -> Debian 10 (skipping Debian 9) works smoothly.
[..]
> As of implementation side, given that Lintian by design do not use
> network, it is possible to assume that Debian release happens once a 2.5
> year (or so), so versions older then 5.5 years (possible to lookup in
> d/changelog) are below threhold.

Alas, unless we can think of a more-reliable way of doing this I fear this
will be far too full of false-positives or will simply not detect enough
cases to be prioritised. :(


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
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