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* Added support for dynamic arrays and new Excel 365 functions like UNIQUE and
FILTER. See :func:`write_dynamic_array_formula`,
:ref:`formula_dynamic_arrays` and :ref:`ex_dynamic_arrays`.
* Added constructor option "use_future_functions" to enable newer Excel
"future" functions in Formulas. See :ref:`formula_future`, and the
:func:`Workbook` constructor.