Find the latest CESM releases on cheyenne here: /glade/p/cesm/releases/
The definitions of CESM compsets can be found here: http://www.cesm.ucar.edu/models/cesm2/cesm/compsets.html. Current CAM-chem compsets start with "FC"
CESM2.1 is released, http://www.cesm.ucar.edu/models/cesm2/whatsnew.html. Use the code on cheyenne here: /glade/p/cesm/releases/cesm2_1
CESM2.0 is released. Use the code on cheyenne here: /glade/p/cesm/releases/cesm2_0