Drop CUDA 11.2

[h-vetinari]

The 22nd of April has passed (where we announced we'd drop CUDA 11.2). This is a variant of #5613 that drops 11.2 and incorporates the various review requests there.

[conda-forge-webservices]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[jakirkham]

Thanks Axel! 🙏

Let's stick to dropping CUDA 11.2 here

We can finish our discussion of how CUDA 12 is added in PR: #5613

[h-vetinari]

We can finish our discussion of how CUDA 12 is added in PR: #5613

Sure we can discuss there.

Let's stick to dropping CUDA 11.2 here

I'd prefer to do both at the same time.

[h-vetinari]

I'd prefer to do both at the same time.

It's more than a preference actually. If we don't do it at the same time, we'll break feedstocks that override a GCC version on a CUDA-enabled feedstock. I've recently had to do that for arrow: conda-forge/arrow-cpp-feedstock@af240dc

(The arrow feedstock will still need fixing afterwards, but at least my approach wouldn't break the bot from opening upgrade PRs.)

[h-vetinari]

Friendly ping @jakirkham. I say we should avoid changing the lengths of the compiler-version zip without a migration, unless there is an urgent overriding cause. I don't see one here. Happy to discuss this in the core call if you prefer.

[jakirkham]

Thanks for the reminder! Have been a bit swamped recently

Interesting context. Yeah let's discuss in the core call. Added to the agenda

[jakirkham]

Based on discussion in the core call, it sounds like we are ok with dropping CUDA 11.2 on its own. Would it be alright if we update this PR to reflect that? Then think we can merge

[h-vetinari]

Based on discussion in the core call, it sounds like we are ok with dropping CUDA 11.2 on its own.

That's not exactly what was discussed IMO, but given that we've deferred the closing of the 12.0 migration for now, I'm fine to close 11.2 separately and deal with the fall-out in arrow.

[jakirkham]

Am happy to also look at Arrow if you need a hand

[h-vetinari]

Am happy to also look at Arrow if you need a hand

It's fine, thanks. I know how to do it, I just didn't want the migration bots to stop issuing PRs due to this.

[jakirkham]

Completely understand

[jakirkham]

Thanks Axel! 🙏

Have gone ahead and approved. Please feel free to merge when you are ready