Nothing changed, because this happened multiple times before. When 10.6 come out, real PPC mac users can not upgrade and peoples who running Mac OS X with MOL on thier PowerPC based not apple macs can't update to 10.6. When 10.7 come out, hackintosh with only 32 bit processors can't run it (like real Macs), but many machines had upgradable CPU's (like real Macs) and will worked fine with 10.7 (like real iMacs, Mac Minis). When 10.8 come out, Hackintosh users simply replace thier nVidia cards to Tesla or newer, thier AMD cards to HD2000 or newer. Now, hackintosh users replace thier video cards to nVidia 600 series or newer or Radeon GCN. This is same true for macs also. Macs with compatible hardware can run 10.8 and newer in full accelerated mode, macs without proper hadware is not.
So no, Nothing is changed. Sometimes Apple lifting up hardware requirenments only with device blacklistings (mostly that happened with 10.12 or 10.4 because nearly all G3 macs can run it, the firewire port is only a blacklisting requirenments) and sometimes with real changes (this happened with 10.5, 10.6, 10.7, 10.8 and now with 10.14).