Version 2.1e (June 2001)

$\bullet$ Extended the energy range up to 1 MeV and added relativisitic Compton heating and cooling.

$\bullet$ Fixed error in calculating threshold energies of some excited levels from type 53 data.

$\bullet$ Fixed error in subroutine which creates blackbody spectra which resulted in spuriously large fluxes at energies above 50 keV.