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brucehoultlast Thursday at 11:16 PM1 replyview on HN

What version fragmentation?

Pretty much everything coming out in 2026 -- including Ventana's Veyron V2 -- is RVA23.

One profile to rule them all.

Currently-shipping applications processors are either RVA20 (plus the B extension in practice) or RVA22 with V as a standard option.

That's not fragmentation, it's just a standard linear progression. Each thing can run all the software from the previous thing:

    RVA20 (what e.g. Ubuntu 25.04 and earlier require)
    -> RVA20 + B
    -> RVA22
    -> RVA22 + V
    -> RVA23 (what Ubuntu 25.10 and later require)

Replies

Joel_Mckaylast Friday at 12:47 AM

The exact same mistakes were made in ARM6. RISC-Y biggest competitor is mature architecture ecosystems and variants of itself.

https://en.wikipedia.org/wiki/Second-system_effect

Even most ARM software compilers still cripple the advanced vendor specific asic features simply for stability mitigation. ARM 8/9 was actually a much leaner design. Cheers =3

https://xkcd.com/927/

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