I always have a hard time to review libreoffice SRUs that come with a
new upstream version. It can take a whole afternoon.

I'll try to outline here what I do, and perhaps I can be given a
suggestion on how to improve it, or take a different approach.

a) debian/watch
It doesn't work. So I have to manually download the upstream detached 
signatures, and verify them against the orig tarballs. Which also doesn't 
always work, due to repacking. So I also download the upstream tarball one more 
time, verify its signatures, then compare the upstream tarball with the orig 
one.

b) multiple orig tarballs
I have to repeat (a) for each of the additional tarballs, namely helpcontent2 
and translations.

c) The tarballs tarball
This is a collection of tarballs that the upstream buildsystem downloads at 
build time, something we must not do in our builders. Here I extract the 
tarballs tarball, see which ones were updated from the previous version, and I 
find a way to verify that they match upstream. Sometimes each respective 
upstream project published a detached signature, so I can use that to verify. 
If not, I download from upstream again to compare with what is in the tarballs 
tarball. And, depending on the size of the diff, I actually review the diff of 
that upstream tarball. If it's too large, I resort to just checking the 
upstream release notes. I do all of that for each tarball that got updated in 
this tarballs tarball.

d) yaru
As I'm writing this, I don't remember how I used to check it, as I haven't 
gotten that far in the review yet. Looks like it comes from a git repository: 
https://github.com/ubuntu/libreoffice-style-yaru-fullcolor.git

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https://bugs.launchpad.net/bugs/2103992

Title:
  [SRU] libreoffice 24.8.6 for oracular

Status in libreoffice package in Ubuntu:
  Fix Released
Status in libreoffice source package in Oracular:
  In Progress

Bug description:
  [Impact]

   * LibreOffice 24.8.6 is in its sixth bugfix release of the 24.8 line:
       https://wiki.documentfoundation.org/ReleasePlan/24.8#24.8.6_release

   * Version 24.8.5 is currently released in oracular. For a list of fixed bugs 
compared to 24.8.5 see the list of bugs fixed in the release candidates of 
24.8.6 (that's a total of 31 bugs):
       
https://wiki.documentfoundation.org/Releases/24.8.6/RC1#List_of_fixed_bugs
       
https://wiki.documentfoundation.org/Releases/24.8.6/RC2#List_of_fixed_bugs

       24.8.6 RC2 is identical to the 24.8.6 release

   * Given the nature of the project, the complexity of the codebase and
  the high level of quality assurance upstream, it is preferable to SRU
  a minor release rather than cherry-pick selected bug fixes.

  [Testing]

   * Upstream testing. Bugs fixed upstream typically include
  unit/regression tests, and the release itself is extensively exercised
  (both in an automated manner and manually).

    * A recent set of upstream's automated jenkins testing can be found here:
      https://ci.libreoffice.org/job/gerrit_248/1500/

    * More information about the upstream QA testing can be found here:
      * Automated tests
        https://wiki.documentfoundation.org/QA/Testing/Automated_Tests
      * Automated UI tests
        https://wiki.documentfoundation.org/Development/UITests
      * Regression tests
        https://wiki.documentfoundation.org/QA/Testing/Regression_Tests
      * Feature tests
        https://wiki.documentfoundation.org/QA/Testing/Feature_Tests

   * Launchpad testing. The libreoffice packages include autopkgtests that were 
run and verified as passing.
      Tested build can be found at 
https://launchpad.net/~ricotz/+archive/ubuntu/ppa/+sourcepub/17068301/+listing-archive-extra
      * [amd64] 
https://autopkgtest.ubuntu.com/results/autopkgtest-oracular-ricotz-ppa/oracular/amd64/libr/libreoffice/20250321_183319_8b0e3@/log.gz
      * [arm64] 
https://autopkgtest.ubuntu.com/results/autopkgtest-oracular-ricotz-ppa/oracular/arm64/libr/libreoffice/20250321_203926_966c6@/log.gz
      * [armhf] 
https://autopkgtest.ubuntu.com/results/autopkgtest-oracular-ricotz-ppa/oracular/armhf/libr/libreoffice/20250323_154735_54c81@/log.gz
      * [ppc64el] 
https://autopkgtest.ubuntu.com/results/autopkgtest-oracular-ricotz-ppa/oracular/ppc64el/libr/libreoffice/20250323_185827_1bc84@/log.gz
      * [riscv64] not available
      * [s390x] 
https://autopkgtest.ubuntu.com/results/autopkgtest-oracular-ricotz-ppa/oracular/s390x/libr/libreoffice/20250321_183911_a4458@/log.gz
   * General smoke testing of all the applications in the office suite were 
carried out by going through the manual testplan as documented by: 
https://wiki.ubuntu.com/Process/Merges/TestPlans/libreoffice

   * Packaging changes are staged at
  
https://git.launchpad.net/~libreoffice/ubuntu/+source/libreoffice/log/?h=wip/oracular-24.8

  [Regression Potential]

   * A minor release with a total of 31 bug fixes always carries the
  potential for introducing regressions, even though it is a bugfix-only
  release, meaning that no new features were added, and no existing
  features were removed.

   * A combination of autopkgtests and careful smoke testing as
  described above should provide reasonable confidence that no
  regressions sneaked in.

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