Camlp4 release for OCaml 4.08 is the last release ever - see the official announcement. It is recommended to port the code to use ppx (extension points), or any external parser (like mehrir, sedlex, ocamllex, ansgtrom, etc).
In its current form, Archimedes will not be updated. Some separate modules such as Curve_sampling and Color_brewery are under development and Archimedes may at some point be rebuild on top of these.
Camlp4 release for OCaml 4.08 is the last release ever - see the official announcement. It is recommended to port the code to use ppx (extension points), or any external parser (like mehrir, sedlex, ocamllex, ansgtrom, etc).
http://opam.ocaml.org/packages/archimedes/archimedes.0.4.19/