Page ENERGY: Acceptance for replica exchange when ENERGY is biased is computed correctly only of all the replicas has the same potential energy function. This is for instance not true when using GROMACS with lambda replica exchange of with plumed-hrex branch.
Page MOLINFO: At the moment all atoms named HA1 are treated as if they are CB atoms. This makes it possible to deal with GLY residues in colvars like ALPHARMSD.