About Upstream version choice

[Mauricio Faria de Oliveira]

Hi,

I'm not directly involved with this in general, but if I understand
the question and some processes correctly:

The package versions in a given Ubuntu release are (usually) a result
of a Time Based Release process
and what package versions are in Ubuntu's and Debian's package
archives; and there are exceptions.

Ubuntu releases under development import packages (without Ubuntu
customizations) from Debian
until the Debian Import Freeze date, and there are packages that are
Ubuntu-only or replacements
that thus aren't (imported) from Debian.  There may be more
details/processes I'm not aware of.

If you check the release schedule wiki page of, e.g., Focal [1], you
may find some of that information
and other related topics that might help as well. [2,3,4].

And, of course, others here may correct me / add more information.
Hope this helps!

[1] https://wiki.ubuntu.com/FocalFossa/ReleaseSchedule
[2] https://wiki.ubuntu.com/TimeBasedReleases
[3] https://wiki.ubuntu.com/DebianImportFreeze
[4] https://wiki.ubuntu.com/Releases

On Fri, Aug 5, 2022 at 3:31 PM 罗瑶明 <lym10061006 at 126.com> wrote:
>
> Dear ubuntu-devel-discuss,
>           I have questions about how to choice or decide which Upstream version to use for a certain software in Ubuntu Derived series.
> is there some guiding principle or refer documents. i.e.,why choice gcc-9.3.0 in the Focal Fossa.
>                                                                                                                                                                 thanks.
>
> --
> Ubuntu-devel-discuss mailing list
> Ubuntu-devel-discuss at lists.ubuntu.com
> Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-discuss



-- 
Mauricio Faria de Oliveira