We have discovered a regression within OCaml 4.13.0 that make the compiler
crash on classes named row
module M = struct
class row = object end
end
due to a collision between two families of internal identifiers.
To restore your freedom to name classes however you want, we have
released OCaml 4.13.1 as an early bug-fix release.
This new version is available as a set of OPAM switches with
opam update
opam switch create 4.13.1
and as a source download here:
https://caml.inria.fr/pub/distrib/ocaml-4.13