Changes since release 9.23

• Single-chain models, which are currently assigned a blank chain ID, can now instead be labeled 'A' by setting automodel.blank_single_chain to False, or by setting the same argument to alignment.append_sequence(), model.generate_topology(), or model.build_sequence(). The default for this argument will change to False in a future Modeller release.

• Bundled version of HDF5 updated to 1.10.5.

• The MEX and ABU residue types are no longer automatically converted to CYS, regardless of the setting of env.io.convert_modres; they are treated as any other ligand.

• Bugfix: alignment.append() no longer fails when given a very long file name to read.