Compiling from lammps-17Nov2016 tarball downloaded on 11Jan2017, I had a problem using an old script input with the new executable. The problem was in the fix wall/gran command, specifically with using the zcylinder argument. The error was in assigning the specified radius for the wall boundary.
Looking at fix_wall_gran.cpp, I noticed that line 152 was changed from older versions:
cylradius = force->numeric(FLERR,arg[iarg+1]);
compared to the new version
cylradius = force->numeric(FLERR,arg[iarg+3]);
The documentation still says that zycylinder requires just one argument after the keyword. I changed the 3 backed to 1, recompiled and the input script ran just fine. I don’t know if this will cause problems elsewhere but, to me, it looks like it should still be a 1.