CHRP support gone from Linux kernel

There weren't that many Common Hardware Reference Platform PowerPC systems anyway, but if you have one of them (notably systems like IBM's RS/6000 7046 Model B50, the Total Impact briQ, Motorola PowerStacks or the PegasosPPC or Pegasos II from Genesi), your days are numbered as CHRP support will be removed from the next Linux kernel release. CHRP never got much market traction; Apple, then the largest seller of PowerPC machines, only partially supported it (Old World Macs are sui generis and New World Macs are a combination of CHRP and PReP), and as a result Linux support for Power Macs — at least what remains — never completely depended on it.

At least for the Genesi machines, however, you have better and more supported options in MorphOS and AmigaOS 4, and while Power Macs should still work, they're (IMHO) more usefully served by one of the BSDs. For the real oddball machines, though, if you were running a bleeding-edge kernel this is the end of the line — unless you'd like to step in and maintain it.