Ashok, the special bonds will allocate space for the 1-2, 1-3, 1-4 bonded pairwise interactions (Lj an coul). If you form a bond that atom is going to be a part of atleast one dihedral [(1-4) interaction , assuming that your system has more than 3 atoms]. These 1-2, 1-3, 1-4 bonded neighbors for an atom are called special neighbors. The maximum number of special neighbors an atom can have is printed when you start the simulation (or have to calculated from the stats that is outputted
N1+N1+N3+N4). Calculate this number it will be close to 33. To be safe use 35.
I do not know about july 2014 version
Good luck
Arun