I'm confused again. misc/compat12x has >= 1400000 in this place, why compat13x also has to have 14 there?

was libmd originally added instead of full compat14x for FreeBSD 15? Or is it needed by some earlier 14.x?

I'd say this package provides the compat14x libraries -- to me "allows you to install" suggests that once you have compat14x installed you can then do something to install the libraries themselves.

I initially added libmd to compat13x because pkg was complaining about missing the required library. Then @des suggested moving it into a separate package, because libmd got bumped in 15, not 14.

I added @comments there to avoid rerolling distfiles for compat13x.

If I'm installing compat13x on a 14.x system prior to upgrading to 15.x, I want it to pull in compat14x.

I don't mind the change if you also change all the other compatNx ports.

Why no lib32/compat/libmd.so.6 (for armv7 support)?

That's an interesting question. The gen-compat.sh script that @bapt wrote only has sets="base lib32" for the amd64 case for some reason.

FYI: lib32 for aarch64 was new in 14.0-RELEASE. It was not in any 13.*-* as I remember.