[jlarocco]

I can't answer authoritatively, but I do know they're not really good at updating the downloads page for anything other than AMD64 Linux and the source tarball (and of course the Git repo). Usually I just build from source.

The catch, of course, is that building from source requires a pre-existing SBCL to bootstrap.

My guess is the only way to get it running on ARM right now is to get it for a non-ARM platform they have for download, bootstrap to 1.2.0, and then cross compile to ARM.

[zachbeane]

One of SBCL's claims to fame is that it doesn't necessarily require a previous copy of itself to bootstrap; it can in theory use CLISP or Clozure CL. (In practice it isn't always tested and working, and I don't know if it would work on ARM if you tried it today.)

[wglb]

Regarding building from source requires a pre-existing SBCL to bootstrap, it is actually true that building from source requires a pre-existing Lisp to bootstrap.