I just added a "documentation" trac ticket type. Its intent is for
user-visible changes that are worth documenting for the v1.3 release
(this likely means the FAQ for the moment).
Two obvious examples (that I just filed tickets for):
- the new OMPI_* environment variables for indicating COMM_WORLD rank,
size, local rank, and the universe size (https://svn.open-mpi.org/trac/ompi/ticket/1228
- the new socket/core rankfile notation (https://svn.open-mpi.org/trac/ompi/ticket/1229