System	GUI (with Tk)	Command-line
Platform	8.4	8.5	8.4	8.5
Windows
ix86	8.4.17	8.5.8	8.4.17	8.5.8
amd64	8.4.17	8.5.8	8.4.17	8.5.8
Linux
ARM	8.4.18	8.5.2
ix86	8.4.18	8.5.8
amd64	8.4.18	8.5.1
MacOS X
Aqua (Univ)	8.4.18	8.5.1
X11 (Univ)	8.4.18	8.5.1
Solaris
SPARC	8.4.17	8.5.1
x86 (32b)	8.4.13	8.5.1

NOTE There are many more binaries available for download than those highlighted above. This includes versions for NetBSD, FreeBSD, Linux-ARM and Linux-PPC and others contributed at various times. Try and search the downloads for anything you need. The only platforms supported by the tclkit maintainers regularly will be Windows, Linux-ix86 and MacOSX.