2007/07/17 (1.2.7..5)
------------------------
* Correctly report the TAG_UB limit (at most 65535 tags)
* Add patch from Argonne to correct test and wait routines.

2007/04/15 (1.2.7..4)
------------------------
* Fix segfault if a MPI_REQUEST_NULL is passed to MPI_Wait()
  (or equivalently if a request is completed twice with MPI_Wait).

2007/03/14 (1.2.7..3)
------------------------
* Fix major memory leak in MPI_Wait()

2007/01/31 (1.2.7..2)
------------------------
* Remove previous hardcoded limit (8000) number of nodes
* Small performance improvement for MPI_Wait() (don't implement on top of MPI_Waitall)
* Implement MXPI_FILE
* MacOSX/intel fix for MPI_Wtime/gettimeofday
* Make waitsome block in blocking mode
* Numa ctl support with --mx-numactl (typically opterons)
* Remove use of non-standard index() (segfault on Solaris 64bit due to
   missing prototype)

2006/03/28 (1.2.7..1)
------------------------
* Merge with upstream distribution of mpich 1.2.7
* Improve mpich.make.linux/mpich.make.macosx
* Fix bug in req.h causing possible hang or memory leak,
  thanks to Dr Alan Iwi from RAL who contributed this fix
* Fix bug with mpirun.ch_mx "-s" option (option was ineffective)
* Fix possible memory leak with non-contiguous messages
* Fix compilations bugs with gcc-4.0
* Fix problems with shared libraries on MacOSX

2005/08/18 (1.2.6..0.94)
------------------------
* Fix bugs with  --mx-recv blocking (even "i" calls were implementing as blocking in that mode)
* Make the mpich.make.linux more flexible (can import CC/FC/F90/CXX from the environment)

2005/07/18 (1.2.6..0.93a)
-------------------------
* Update the initialization mechanism (now identical to current mpich-gm)
 - mpirun.ch_mx script incompatible with previous mpich-mx binaries
 - you can use the mpirun.ch_mx_compat script to start this old binaries
 - add options:
    --mx-tree-spawn
    --mx-label 
    --mx-recv [blocking|polling ] (replaces --mx-blocking)
    --mx-copy-env
* Update mpich.make.linux template
* Ensure plain "mpirun" pass option to mpirun.ch_mx.pl