···1010the one that application programs use, the syscall interface. That1111interface is _very_ stable over time, and will not break. I have old1212programs that were built on a pre 0.9something kernel that still work1313-just fine on the latest 2.6 kernel release. This interface is the one1313+just fine on the latest 2.6 kernel release. That interface is the one1414that users and application programmers can count on being stable.15151616