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* Added docs on :ref:`object_position`.
* Added fix for sizing of cell comment boxes when they cross columns/rows that
have size changes that occur after the comment is written. :issue:`403` and
:issue:`312`.
* Added fix for the sizing of worksheet objects (images, charts, textboxes)
when the underlying cell sizes have changed and the "object_position"
parameter has been set to 1 "Move and size with cells". An additional mode 4
has been added to simulate inserting the object in hidden rows.
:issue:`618`.
* Added object positioning for charts and textboxes, it was already supported
for images. Note, the parameter is now called ``object_position``. The
previous parameter name ``positioning`` is deprecated but still supported
for images. :issue:`568`.