Linux 7.1 started phasing out support for Intel's 37-year-old i486 processor . Linux 7.2 removed drivers for the old AMD Elan 32-bit systems on a chip . And now some i586 and i686 class processors are being removed, reports Phoronix : Supporting those vintage GPUs without the Time Stamp Counter "TSC" instruction are becoming a burden... TSC-capable Intel Pentium processors and the likes will still be supported with this just being for TSC-less i586/i686 CPUs. Among the CPUs impacted by this latest change is the AMD K5 as well as various Cyrix processor models. The K5 was AMD's first entirely in-house designed processor that was first introduced in 1996 to counter the Intel Pentium CPU. TSC "support can now be assumed as a boot requirement for modern Linux," the article points out, which will allow the removal of various non-TSC code paths from the Linux kernel's x86 code.…