Document the fact that we are now using pure Semantic Versioning
including trailing zeros.
Also update debian/changelog and NEWS.markdown for previous pull
request.
Also remove erroneously added eol tag for Ubuntu Jammy again as it is
an LTS release.
Closes: #1027383
Thanks to Santiago Vila for the bug report.
Actually the build-dependency is not strictly necessary as mount is
not really used at build or test time. But there's one test checking
the environment for a typical make, make test, make install workflow
to abort if not all required run-time dependencies can be found.
Then again, for the same reason as given in the bug report, a run-time
dependency on mount was missing, too.
From Debian 11 Bullseye onwards, debian uses $dist-security instead of
$dist/updates as distribution part in /etc/apt/sources.list.
Mark those distributions with the old-style subdirectory path with
"security-subdir" in distributions.conf.
Thanks to Paul Wise for the bug report (and hence reminding me of
this) and for the suggestions on how to implement this (even if I
didn't follow them for the sake of simplicity and no additional
dependencies).
Closes: #972749
Reasoning:
Debian 8 Jessie has still (external) ELTS until 2022. But
debian-internal LTS has ended and it will likely vanish from the
normal mirrors soon. And it is already available in the archive. (And
some architectures are already only available in the archive.)
Also mention marking Debian 7 Wheezy as EoL in NEWS.markdown. (Was
already mentioned in debian/changelog.)
At least debootstrap 1.0.110 (Buster/Sid) or 1.0.110~bpo9+1
(Stretch-Backports) is required for:
* working bootstrapping of Ubuntu 6.06 Dapper and 6.10 Edgy (see
#659360).
* Support of Ubuntu 17.10 Artful, 18.04 LTS Bionic, 18.10 Cosmic, and
19.04 Disco.
Any tag ending in ".gpg" will be considered to be the according
keyring file in /usr/share/keyrings/. This is at least needed for some
Ubuntu releases which were eol'ed in the past few years, especially
because Ubuntu split up their keyrings much more finegrained than just
"archive" and "archive-removed-keys".
