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- Support for multi-state schemes (such as kinetic rates and relaxation
times for conversions between states) was added;
see :mod:`ihm.multi_state_scheme`.
- Residue numbering in non-polymer, water, and branched entities should
now be better handled, no longer requiring the various scheme tables
to precede ``atom_site``. If you subclass :class:`ihm.model.Model`, atoms
may need to be renumbered; see :meth:`ihm.model.Model.add_atom` (130).
- Original author-provided numbering can now be provided for waters,
using the ``orig_auth_seq_id_map`` argument to :class:`ihm.WaterAsymUnit`.
- The make-mmcif.py utility script now has basic functionality for
combining multiple input files into one, relabeling chain IDs if necessary.
- An :class:`ihm.Entity` containing just a single sugar is now classified
as a nonpolymer, not branched.