Comment 0 for bug 1929999

[Impact]

* LibreOffice 6.4.7.2.M1 is a bug-fix release of the 6.4 line:
    It receives important bug-fixes on top of the 6.4 branch which is EOL since November 30, 2020. Currently maintained by Andras Timar for France's MIMO (https://blog.documentfoundation.org/blog/2013/06/17/the-document-foundation-welcomes-frances-mimo-in-the-advisory-board/)

* Version 6.4.7 is currently released in focal.
    https://cgit.freedesktop.org/libreoffice/core/log/?h=distro/mimo/mimo-6-4
    (that's a total of ?? bugs)

* 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]

* Launchpad testing. The libreoffice packages include autopkgtests that were run and verified as passing.
    https://launchpad.net/~ricotz/+archive/ubuntu/ppa/+sourcepub/12419370/+listing-archive-extra

    * [amd64] ...
    * [arm64] ...
    * [armhf] ...
    * [ppc64el] ...
    * [s390x] ...

* 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

[Regression Potential]

* A minor release with a total of ?? bug fixes always carries the potential for introducing regressions, even though it is a bug-fix-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.