[Opm] Drop Dune 2.6 support in 2023.04 (was: Re: Dropping DUNE 2.6 support for OPM 2022.10?)

[Markus Blatt]

Let's revisit this in the light of [0]

On Tue, Oct 04, 2022 at 06:31:28AM +0000, Atgeirr Rasmussen wrote:
> Hi,
> 
> Circling back to Arne Morten's point, that we would have to backport Dune and put it in our own ppa to use the newer Dune releases, how much work would that be?

I don't think that this is too much work. The only problem that might occur is
that the platform compiler might be too old to compile newer DUNE versions. But
hopfully backporting the next newer version is still possible.

> And if we did that, could/should we skip straight to Dune 2.8 or even 2.9?

Two stable versions seem feasible to me.

Markus

[0] <https://github.com/OPM/opm-simulators/issues/4472>