This section contains clarifications and minor corrections to Version 1.1 of the MPI-/ Standard. The only new function in MPI-1.2/ is one for identifying which version of the MPI Standard the implementation being used conforms to. There are small differences between MPI-/ and MPI-1.1/. There are very few differences (only those discussed in this chapter) between MPI-1.1/ and MPI-1.2/, but large differences (the rest of this document) between MPI-1.2/ and MPI-//.