1. (Jim) Discussion of endpoints query function.  We decided not to pursue this at this time for two reasons: (1) it's hard to define (is it relative to another communicator?) and (2) because knowing the number of endpoints is not helpful, you need the handles and a routine that returns the handles breaks MPI convention.

2. (Dan) Discussion of communicator comparison routines in the presence of endpoints.

3. (Pavan) Move toward resolution of MPI_Comm_free.  Currently, the leading option is to leave MPI_Comm_free as a conventional collective (MPI_THREAD_MULTIPLE mode is required to free an endpoints communicator).  We could pursue a lesser-collective MPI_Comm_endpoints_free (i.e. for lesser threading models) in a future proposal.

 ~Jim.