Sourced from xlsxwriter's changelog.

Release 1.4.5 - July 29 2021

• Added Description/Alt Text and Decorative accessibility options for charts, textboxes and buttons. These options were already available for images.

Release 1.4.4 - July 4 2021

• Added some performance improvements. Performance for larger files should be 5-10% better.

Release 1.4.3 - May 12 2021

• Added support for background images in worksheets. See :func:set_background and :ref:ex_background.

Release 1.4.2 - May 7 2021

• Added support for GIF image files (and in Excel 365, animated GIF files).

Release 1.4.1 - May 6 2021

• 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.

Release 1.4.0 - April 23 2021

• Added fix for issue for where a y_axis font rotation of 0 was ignored.

Release 1.3.9 - April 15 2021

• Added option to set row heights and column widths in pixels via the :func:set_row_pixels and :func:set_column_pixels methods.

... (truncated)

• dca3b87 Prep for release 1.4.5
• f79db22 Minor doc fix.
• fc1f536 Add doc clarification on text_wrap() auto height adjustment.
• 90c7e82 Added addition accessibility options for worksheet objects.
• 6ee2ece Added test for turning off chart title font bold.
• c515ab2 Minor doc clarifications.
• 6e6e2f1 Minor clarity fix in example program.
• 31e2e33 Prep for release 1.4.4
• f7b71af Changed some re.sub() to string.replace().
• e1eefac Fix precompiled dynamic array function matches.
• Additional commits viewable in compare view

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