Он это ещё в 2005 году обещал
- 2.6.<odd>: still a stable kernel, but accept bigger changes leading up to it (timeframe: a month or two).
- 2.<odd>.x: aim for big changes that may destabilize the kernel for several releases (timeframe: a year or two)
- <odd>.x.x: Linus went crazy, broke absolutely _everything_, and rewrote the kernel to be a microkernel using a special message-passing version of Visual Basic. (timeframe: «we expect that he will be released from the mental institution in a decade or two»).