Is C32 Grin's final PoW update?

Mining
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I am trying to reconcile two pieces of information and haven’t been able to just by searching.

4 hard forks outlined here, which I take it are all complete, having arrived at 100% C32 PoW.

And this:

“Thereafter, the beginning of Cuckatoo-33 in 2023 marks the phase transitioning to a fully Cuckatoo31+ mined Grin network.”

Is the coindesk article wrong or is there a C32-C33 change coming? And if so is there C34, etc., does it continue?

Thanks

Edit: I searched more and find that C33+ are on hold, with 18 month notification time before they will be resumed. C32 is only PoW for now and near future.

What I hadn’t found in previous searches is Proof of Work - Grin Documentation

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Not quite correct. Grin’s Pow since the last hardfork is Cuckatoo32+.

That means that it accepts all of C32, C33, C34, … up to C63.
But of course C32 is the preferred choice since C33+ puts much higher demands on mining hardware and software, and we may never see ASICs supporting C33…

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Thank you Tromp.

Are there any CPU C33 or C34 miners we can load up with RAM and try to win the lottery on, or would it be pointless?

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There are CPU lean miners that will do C33+ but they take more than a minute to process one graph so it’s rather pointless. A GPU can do it in under a minute but it’s almost an order of magnitude less efficient as there will be few sequential accesses to RAM.

The best hope is a slean GPU miner which @Lolliedieb has written (not sure if it’s part of the publicly available lolminer) which I believe would be within 2x of the efficiency of C32.

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12 x Rtx 3090 24Gb with NV-Link provide 288Gb GDDR6 and lolminer solve C33 not asics they will never able do the same and will be useless in future