Also, regarding the significant changes: " ### Tianocore UEFI
integrated as payload " . I hope it doesn't mean that Tianocore will
become the default payload, since there are ideological/technical
reasons against this ( I think there's a significant overlap between
the groups of people who love / interested in coreboot and hate UEFI )
the change could be reworded better I think: instead of the stable tag for Tianocore being pulled from the upstream edk2 github repo and a series of patches applied, it's now pulled directly from my fork/repo, which is actually functional on most (x86_64) devices. A few tweaks (like customizable boot splash) were added as well.
there is no change to the default payload, only to the defaults for Tianocore