Bug#633304: transition: ocaml
OCaml 3.12.1 has been recently released. It is mostly bugfixes. I've
rebuilt all packages that depend on ocaml, and I see no blocker to
update it in Debian. I've planified the migration at  (I am
planning to update a few other packages on the way). This will involve
~30 sourceful uploads and ~150 binNMUs.
I am waiting for the approval from the release team to proceed.