The OSx86 community has been quick to make the necessary modifications to enable Apple's latest releases to run on non-Apple hardware.Within hours of Leopard's release, an AMD/Intel SSE2/3 Kernel Patcher was created which removed the HPET requirement from an original untouched mach_kernel file, a core component of the Mac OS.
Up to the release of the 10.4.8 update, all OSx86 patches used the 10.4.4 kernel with the rest of the operating system at version 10.4.8.
However, the newer frameworks relied on the newer kernels and this led to users of 10.4.8 encountering many problems.
When "Snow Leopard" was released, Russian hacker netkas created a version of Chameleon which can boot Mac OS X v10.6.
The main problem was that many people were forced to modify DSDT or use kexts due to some specific issues.
A prominent member of the community, Ja S, released many distros of Mac OS X Tiger containing patched kernels.