Version regression report

[Julian Andres Klode]

I just rediscovered my script that calculates which versions in a newer release
are lower than updates in the previous release. These packages won't be upgraded
when the user upgrades, which means they might end up with problems, or new installs
miss out on fixes in older releases.

I ran this two times: One time with -security enabled, one time with -updates enabled
as well. Optimally, we'd not have any issues in either run (though bionic -> cosmic
is probably less important than the LTS->LTS upgrades, and latest -> latest).

I really should get this run as a cron job and build some nice HTML pages, so we can
keep track of this over the next cycle.

Some things stand out in the report:

* snapcraft in disco has cosmic in changelog, and 18.10 in the version, but is in disco,
  not cosmic.
* libdrm backport in trusty is 2.4.67-1ubuntu0.14.04.2, when it probably should be
  2.4.67-1~ubuntu0.14.04.2 (as xenial has 2.4.67-1, which is lower).
* Various packages have ubuntu0.X uploads, but only a buildY in a later version, and
  build < ubuntu. Some of them might be wrongly versioned, but others are missing fixes
  in later versions, e.g. uwsgi-plugin-php has a security upload in bionic, but cosmic
  and disco are unfixed. Getting closer to the next LTS, we should keep an eye on these.

** -security only **

Version regression report for trusty to xenial
=====================================================
main
----
dh-golang                      1.13~0ubuntu0~14.04.1/trusty-security              -> 1.12ubuntu1/xenial                      
libdrm                         2.4.67-1ubuntu0.14.04.2/trusty-security            -> 2.4.67-1/xenial                         
llvm-toolchain-3.8             1:3.8-2ubuntu3~trusty5/trusty-security             -> 1:3.8-2ubuntu1/xenial                   

Version regression report for xenial to bionic
=====================================================
main
----
linux-meta-gcp                 4.15.0.1028.42/xenial-security                     -> 4.15.0.1028.30/bionic-security           (but 4.15.0.1029.31 in bionic-proposed)

Version regression report for bionic to cosmic
=====================================================
main
----
clamav                         0.100.2+dfsg-1ubuntu0.18.04.1/bionic-security      -> 0.100.2+dfsg-0ubuntu1/cosmic            

universe
--------
mariadb-10.1                   1:10.1.38-0ubuntu0.18.04.1/bionic-security         -> 1:10.1.29-6ubuntu2/cosmic               
uwsgi-plugin-php               0.0.3ubuntu0.1/bionic-security                     -> 0.0.3build2/cosmic                      

Version regression report for cosmic to disco
=====================================================
universe
--------
gpac                           0.5.2-426-gc5ad4e4+dfsg5-4ubuntu0.1/cosmic-security -> 0.5.2-426-gc5ad4e4+dfsg5-4build1/disco  
libsolv                        0.6.35-2ubuntu0.18.10.1/cosmic-security            -> 0.6.35-2build2/disco                     (but 0.6.35-2ubuntu1 in disco-proposed)


** with updates **

Version regression report for trusty to xenial
=====================================================
main
----
dh-golang                      1.13~0ubuntu0~14.04.1/trusty-updates               -> 1.12ubuntu1/xenial                      

Version regression report for xenial to bionic
=====================================================
main
----
crash                          7.2.3+real-1~16.04.1/xenial-updates                -> 7.2.1-1ubuntu2/bionic-updates           
linux-meta-gcp                 4.15.0.1028.42/xenial-updates                      -> 4.15.0.1028.30/bionic-updates            (but 4.15.0.1029.31 in bionic-proposed)

universe
--------
xdg-desktop-portal-gtk         1.0.2-0ubuntu0.0/xenial-updates                    -> 0.11-1/bionic                            (but 1.0.2-0ubuntu1.1 in bionic-proposed)

Version regression report for bionic to cosmic
=====================================================
main
----
clamav                         0.100.2+dfsg-1ubuntu0.18.04.1/bionic-updates       -> 0.100.2+dfsg-0ubuntu1/cosmic            

universe
--------
fuse-umfuse-ext2               0.4-1.1ubuntu0.18.04.1/bionic-updates              -> 0.4-1.1ubuntu0.1/cosmic                 
mariadb-10.1                   1:10.1.38-0ubuntu0.18.04.1/bionic-updates          -> 1:10.1.29-6ubuntu2/cosmic               
snapcraft                      2.43.1+18.04/bionic-updates                        -> 2.43+18.10.1/cosmic                     
swauth                         1.3.0-1ubuntu1/bionic-updates                      -> 1.3.0-1/cosmic                          
uwsgi-plugin-php               0.0.3ubuntu0.1/bionic-updates                      -> 0.0.3build2/cosmic                      

multiverse
----------
linux-firmware-raspi2          1.20180919-0ubuntu0.18.04.2/bionic-updates         -> 1.20161020-0ubuntu1/cosmic  

Version regression report for cosmic to disco
=====================================================
universe
--------
gpac                           0.5.2-426-gc5ad4e4+dfsg5-4ubuntu0.1/cosmic-updates -> 0.5.2-426-gc5ad4e4+dfsg5-4build1/disco  
libsolv                        0.6.35-2ubuntu0.18.10.1/cosmic-updates             -> 0.6.35-2build2/disco                     (but 0.6.35-2ubuntu1 in disco-proposed)

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