On Tue, Dec 6, 2022 at 11:27 AM Neal Gompa <ngompa13@gmail.com> wrote:
>
> On Tue, Dec 6, 2022 at 7:54 AM Josh Boyer <jwboyer@fedoraproject.org> wrote:
> >
> > On Tue, Dec 6, 2022 at 1:43 AM Terry Barnaby <terry1@beam.ltd.uk> wrote:
> > >
> > > On 05/12/2022 16:00, Jarek Prokop wrote:
> > >
> > >
> > > On 12/5/22 14:57, Peter Robinson wrote:
> > >
> > > On Mon, Dec 5, 2022 at 12:01 PM Vitaly Zaitsev via devel
> > > <devel@lists.fedoraproject.org> wrote:
> > I wouldn't expect them to build for a Fedora version. I also wouldn't
> > expect ISV software built against Red Hat Enterprise Linux 7 (or 8) to
> > work on Fedora either.
> >
>
> As a practical matter, I generally *do* expect them to be compatible
> at some level. RHEL is a derivative of Fedora. Otherwise it gets very
> difficult to use commercial software on a Fedora system. I know plenty
> of ISVs that have a similar expectation.
That compatibility degrades over time though. At this point in time,
with RHEL 7 being almost 9 years old, I would not expect software
built on RHEL 7 to work on any supported Fedora version. If it does
work, that's fantastic and a testament to Fedora, but people should
not have that expectation. Terry is politely asking for a policy that
would set that expectation. I think the intention is good, but I
don't believe it to be realistic.
I think he would be happy with the policy spelled out in any form. Something like:
While the Fedora Project is the upstream of CentOS Stream and Red Hat Enterprise Linux, it does not give any guarantees of its releases being compatible with either. Software built in either may not work due to missing dependencies, changes in kernel, compile time or library options, or similar issues.
To perhaps illustrate the point further, Red Hat Enterprise Linux does
not support applications built on version X-1 running on X unless it
is constrained to using a very very small set of dependencies (glibc,
libgcc/libstdc++, and a few smaller libraries). Again, it may work
fine but the expectation and support policies set for RHEL are
(simplified) build on X, run on X where X is within a major version.
Our full documentation on this is available in the Application
Compatibility Guides.
josh
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