1.6.3 (2017-12-09)
------------------
- AttributeError is no longer raised when accessing __geo_interface__ of an
empty polygon (#450).
- ``asShape`` now handles empty coordinates in mappings as ``shape`` does
(#542). Please note that ``asShape`` is likely to be deprecated in a future
version of Shapely.
- Check for length of LineString coordinates in speed mode, preventing crashes
when using LineStrings with only one coordinate (#546).