3 ms·
$ opam update $ opam switch create 5.0.0 --repositories=default $ eval $(opam env) $ ocaml OCaml version 5.0.0 Enter #help;; for help.
by UncleOxidant 4y ago
$ opam update
$ opam switch create 5.0.0 --repositories=default
$ eval $(opam env)
$ ocaml
OCaml version 5.0.0
Enter #help;; for help.