Log message:
py-openpyxl: updated to 2.6.2

2.6.2:
Bugfixes
* Workbook has no _date_formats attribute
* Cannot create charts for worksheets with quotes in the title
* MergedCells not removed when range is unmerged
* Link to pivot table lost from charts
* Chart colours change after saving
* Cannot use ws.cell in read-only mode with Python 2.7

Log message:
py-openpyxl: updated to 2.6.1

2.6.1:
Bugfixes
* ReadOnlyCell.is_date does not work properly
* Cannot read Google Docs spreadsheet with a Pivot Table
* Charts created with openpyxl cannot be styled
* Cannot handle some numpy number types
* Exception when reading unknowable number formats
* Only last formatting rule for a range loaded
* Give MergedCell a value attribute
* Cannot process worksheets with comments
* Cannot process worksheets with both row and page breaks
* Cannot reset dimensions in ReadOnlyWorksheets
* Incorrect descriptor in ParagraphProperties
* Missing hier attribute in PageField raises an exception

Log message:
py-openpyxl: updated to 2.6.0

2.6.0:
Bugfixes
* Exception on tables with names containing spaces.
* Cannot save files with existing images.

2.6.-b1:
Bugfixes
* Cannot use read-only mode with stream
* Hyperlinks always set on A1
* Internal row counter not initialised when reading files
* Exception raised on out of bounds date

2.6-a1:
Major changes
Implement robust for merged cells so that these can be formatted the way Excel \ 
does without confusion. Thanks to Magnus Schieder.

Minor changes
Add support for worksheet scenarios
Add read support for chartsheets
Add method for moving ranges of cells on a worksheet
Last version to support Python 2.7

Deprecations
Type inference and coercion for cell values

Log message:
py-openpyxl: updated to 2.5.14

2.5.14:

Bugfixes
Correct typo in LineProperties
Exception raised for unsupported image files
Exception raised when cannot find source for non-local cache object

Pull Requests
Add support for nested brackets to the tokeniser
Improvements on handling nested brackets in the tokeniser

Log message:
py-openpyxl: updated to 2.5.12

2.5.12:

Bugfixes
* Overwriting default font in Normal style affects library default
* Images not added to anchors.
* Cannot read pivot table formats without dxId
* Repeated registration of simple filter could lead to memory leaks

Log message:
py-openpyxl: updated to 2.5.11

2.5.11:
* Improved handling of missing rows
* Add support for defined names to tokeniser

Log message:
py-openpyxl: updated to 2.5.10

2.5.10:

Bugfixes
* Empty column dimensions should not be saved.

Pull Requests
* Tokenizer failure for quoted sheet name in second half of range
* Improved error detection in ranges.

Log message:
py-openpyxl: updated to 2.5.9

2.5.9:

Bugfixes
* Clean AutoFilter name definitions
* Attribute missing from Shape object
* Failure to read all DrawingML means workbook can't be read

Pull Requests
* Allow newlines in formulae
* Fix whitespace in front of infix operator in formulae

Log message:
py-openpyxl: updated to 2.5.8

2.5.8:
Cannot control how missing values are displayed in charts.
Cell references can’t be used for chart titles
Params in iter_cols and iter_rows methods are slightly wrong.

Log message:
py-openpyxl: updated to 2.5.7

2.5.7:
Sheet title containing % need quoting in references
Cannot set quote prefix
Pandas timestamps raise KeyError