MPS is a Message Passing System, similar to, but
not compatible with, CORBA and its IDL. Interfaces
are specified in an IDL-like language; bindings
exist for C++ and Java, on multiple platforms.
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Object-server naming has been split out from Object-server publishing, NamingService interface has changed significantly, bugfixes in the build process, and a new Java GUI for monitoring a NamingService instance.