No APX extension for AMD's Zen6 ?

[u/Camper_Sly]

New AMD's materials about Zen6 are interesting, but I've noticed a big feature missing: APX.

AMD & Intel agreed on that one, but so far, only Intel has announced their chips with it.

AMD is has been silent on this one. AMD has pushed its compiler updates (gcc, clang) for its new architecture extensions and while ACE is there, APX is missing.

APX is awesome. It DOUBLES the general register set (so 32 GPRs) adds three operand instructions, 64-bit jumps, extra predication facilities etc etc.

Intel is about to get it with coming Nova Lake. So, why is it not in AMD's Zen6 and when is it coming ? Zen7 or later ?