[SRU] libreoffice 7.6.7 for mantic

[Rico Tzschichholz]

[Impact]

 * LibreOffice 7.6.7 is in its seventh and last bugfix release of the 7.6 line:
     https://wiki.documentfoundation.org/ReleasePlan/7.6#7.6.7_release

 * Version 7.6.6 is currently released in mantic. For a list of fixed bugs compared to 7.6.6 see the list of bugs fixed in the release candidates of 7.6.7 (that's a total of 44 bugs):
     https://wiki.documentfoundation.org/Releases/7.6.7/RC1#List_of_fixed_bugs
     https://wiki.documentfoundation.org/Releases/7.6.7/RC2#List_of_fixed_bugs

     7.6.7 RC2 is identical to the 7.6.7 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_76/1898/

  * 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/16125824/+listing-archive-extra
    * [amd64] https://autopkgtest.ubuntu.com/results/autopkgtest-mantic-ricotz-ppa/mantic/amd64/libr/libreoffice/20240517_214739_0f4ec@/log.gz
    * [arm64] https://autopkgtest.ubuntu.com/results/autopkgtest-mantic-ricotz-ppa/mantic/arm64/libr/libreoffice/20240517_033318_d0241@/log.gz
    * [armhf] https://autopkgtest.ubuntu.com/results/autopkgtest-mantic-ricotz-ppa/mantic/armhf/libr/libreoffice/20240518_115732_87b0c@/log.gz
    * [ppc64el] https://autopkgtest.ubuntu.com/results/autopkgtest-mantic-ricotz-ppa/mantic/ppc64el/libr/libreoffice/20240516_052235_2dedd@/log.gz
    * [riscv64] not available
    * [s390x] https://autopkgtest.ubuntu.com/results/autopkgtest-mantic-ricotz-ppa/mantic/s390x/libr/libreoffice/20240514_185856_1ee2f@/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/mantic-7.6

[Regression Potential]

 * A minor release with a total of 44 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.

[Rico Tzschichholz (ricotz)]

Affected by https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/2065728

[Andreas Hasenack (ahasenack)]

Hello Rico, or anyone else affected,

Accepted libreoffice into mantic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/libreoffice/4:7.6.7-0ubuntu0.23.10.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-mantic to verification-done-mantic. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-mantic. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.