[CM] Let's hear from CM 1.x users(?)

[Tobias Kunze Briseño]

i personally prefer version 2--IMO it's cleaner and as rick said with
fewer hacks.  but i also know full well that i won't ever port old
code to it.  not only because of the drudgery of the work, but because
it is important to me to get exactly the same output.

so i guess i really miss only one thing: a language switch.  i'd like
to call cm with, say, "-language 1.3".  Or, even better, a

  (with-language-version ("1.3")
    ...)

of course, this would require that old implementations were
maintained.  i keep pretty much all versions on disk, fixing stuff
as needed for myself.