OS that Apple used before [macOS]/MacOS X.

Support for the MacOS Classic platform was dropped from [Tcl]/[Tk] as of version 8.5. [Daniel Steffen] and others provide
[Tcl], [Tk], and even [Tclkit] in formats suitable for MacOS Classic (both 68k and Power PC!), up to [Tcl]/[Tk] release 8.4.2.

** Discussion **

<<categories>> Operating System | Mac