Hi,In preparation for the 113.24 release of Jane Street packages, which are camlp4-free, we moved some Camlp4 syntax extensions into their own packages [1]. As a result some findlib packages have been renamed. For instance the old sexplib.syntax is now called pa_sexp_conv.Details and upgrading instructions can be found in the opam repository changelog [2].Since the upcoming 113.24 release of sexplib, bin_prot and a few other packages breaks compatibility due to these renamings, version constraints were automatically added to the appropriate opam packages.This is the list of affected packages:- async-zmq- bookaml- camlhighlight- charrua-core- cohttp- colors_js- conduit- cstruct- extprot- ezjsonm- frenetic- git-unix- ibx- ipaddr- irmin- lambdoc- lazy-trie- merge-queues- merge-ropes- mirage- mirage-git- mirage-http- mirage-tc- mirage-types- mirage-types-lwt- mustache- nocrypto- obeanstalk- ocaml-markdown- oloop- openflow- operf-macro- opium- otr- packet- perf- planck- protocol-9p- qcow-format- shared-block-ring- sibylfs- sill- tls- tlstunnel- topology- uri- vchan- x509- xapi-backtrace- xapi-stdext- xapi-xenopsd- xentropydIf you maintain any of these packages, you are kindly invited to follow the upgrading instructions [2].Moving forward, we encourage people using any of our Camlp4 syntax extensions to switch to their ppx replacements.--Jeremie Dimino