Drop UBUNTU_CODENAME from /etc/os-release

[Nick Rosbrook]

On Tue, May 7, 2024 at 7:09 AM Benjamin Drung <bdrung at ubuntu.com> wrote:
>
> Hi everyone,
>
> Bug #1520154 introduced UBUNTU_CODENAME, but the final name that landed
> in the os-release specification is VERSION_CODENAME. Ubuntu specifies
> VERSION_CODENAME since Ubuntu 16.04 "xenial" (see bug #1598212).
>
> So let's finally drop UBUNTU_CODENAME from os-release starting with
> Ubuntu 24.10 "oracular": https://launchpad.net/bugs/2065040

It seems like this could be a headache for a lot of people. Debian
codesearch shows [1] many references to UBUNTU_CODENAME.

So, what's the gain for us dropping this? Or, what's the downside to
us keeping it?

Thanks,
Nick

[1] http://codesearch.debian.net/search?q=UBUNTU_CODENAME%5B%5E%3D%5D&literal=0