Hexagon has updated software/libraries:

cray-mpich2 (earlier name of xt-mpich2 is depreciated):
5.5.2 -> 5.5.3

PGI 12.5 -> 12.6

xt-asyncpe 5.12 -> 5.13

netcdf 4.2.0 (replaced for small bug-fix)
hdf5 1.8.8 (replaced for small bug-fix)

ATP 1.5.0 -> 1.5.1
STAT 1.2.1.1 -> 1.2.1.2

The details is not yet released but will be available from:

http://docs.cray.com/relnotes/