V0.81 was produced on a Pentium PC runing FreeBSD 2.x with XF86 3.1
V0.88 was produced on a Pentium PC runing FreeBSD 3.x with XF86 3.1

v0.88-elf was produced on FreeBSD 3.x ELF system
v0.89-elf was produced on FreeBSD 4.0 ELF system