Our organization is in the process of exploring an upgrade to our enterprise setup. We have both dev and prod builds at the 10.9.1 version. Our web adaptors are centrally located on a single machine; dev has 2, prod has 2 as well. We'd like to explore upgrading our dev environment to 11.5, for testing purposes, but will this version mismatch cause an issue on the web adaptor machine? Does ESRI even support this type of scenario? Or would it be best practice to stand up a new machine for the dev web adaptors?
