Breaking Change

• Rename exported variable ErrTableNameLength to ErrNameLength
• Rename exported type PaneOptions to Selection
• Rename the Runs field to Paragraph in the exported Comment data type
• Remove the Lang field in the Style data type
• Removed exported ChartTitle data type, and using the RichTextRun data type instead of it
• Changed the data type for the DecimalPlaces to pointer of integer
• Change the default point to pixels conversion factor, resolve issues #279 and #1536
• Change the AddShape function signature: func (f *File) AddShape(sheet, cell string, opts *Shape) error to func (f *File) AddShape(sheet string, opts *Shape) error

Notable Features

• Add new exported error variables ErrExistsTableName and ErrorFormControlValue
• Add new options ShortDatePattern, LongDatePattern, LongTimePattern and CultureInfo in the Options data type, related issue #1199
• Add new exported data type CultureName enumeration for country code
• New functions GetTables and DeleteTablesupport to get and remove tables, related issues #674 and #1454
• New function GetStyle support to get style definitions, related issues #314, #1520 and #1521
• Support applying cell value with placeholder, padding, rounds numbers, currency, accounting and switches argument number format, and support applying date and time number format for 812 language tags, related issue #660
• New support 10 formula functions: ARRAYTOTEXT, FORECAST, FORECAST.LINEAR, FREQUENCY, INTERCEPT, ODDFYIELD, ODDLPRICE, ODDLYIELD, PROB, VALUETOTEXT
• Add file path length limitation details in the error message
• New function GetPanes support to get sheet panes and view selection
• New functions AddFormControl, GetFormControls and DeleteFormControl support to form controls, related issues #301 and #1169
• The AddChart function support set primary titles, related issue #1553
• The AddChart function support creating chart with a secondary series axis, related issue #518
• The AddChart function support formatting and setting rich text titles for the chart, related issue #1588
• Add check for shape type for the AddShape function, an error will be returned if no shape type is specified
• Support read cell values formatted by the Japanese calendar number format, related issue #1590
• The GetPictures function support read one cell anchor pictures, related issue #1585
• The NewConditionalStyle function support to create a conditional format with number format and protection, related issue #1610

Improve the Compatibility

• Support checking cell value length with multi-bytes characters, related issue #1517
• Prevent create duplicate tables and defined name with the same name
• Improve the cell comment box shape size compatibility with KingSoft WPS
• Support fallback to default column width in sheet format property, related issue #1536
• Made case in-sensitive for internal worksheet XML path to improve compatibility, related issue #1591

Bug Fixes

• Escape XML characters after checking cell value length, fix stream writer generated file corrupted, resolve issues #1518, #1519 and #1530
• Fix incorrect comment box size for multi-line plain text comments
• Preventing format text cell value as a numeric, resolve issues #1523, #1528 and #1533
• Fix race conditions for concurrency safety functions
• Fix incorrect round millisecond for the date time
• Fix incorrect number formatted result for date and time with 12 hours at AM
• Fix incorrect formula functions SUMIFS and AVERAGEIFS result, resolve issue #1564
• Fix basic arithmetic operator priority issues in the calculating engine, resolve issue #1599
• Fix across worksheet reference issue for the formula calculation engine
• Fix adjust table issue when after removing rows, resolve issue #1539
• Support to get multiple images in one cell, resolve issue #1548
• Fix the added picture position was incorrect in some cases, resolve issue #1560
• Support adjusting the formula when inserting columns and rows, fix the workbook corruption caused by inserting columns or rows caused, resolve issue #1565
• Formula function CONCAT, CONCATENATE support concatenation of multiple cell values, resolve issue #1569
• Fix incorrect formula calculate results on a nested argument function which returns a numeric result, resolve issue #1582
• Fix internal graphic object counter issues caused added picture was duplicated, resolve issue #1584
• Fix read date time cell result was incorrectly caused by hours rounding issue, resolve issue #1587
• Fix panic on getting merged cells with the same start and end axis

Performance

• Optimizing regexp calls to improve performance, related issue #1532
• This avoid unnecessary byte/string conversion, related issue #1541

Miscellaneous

• The dependencies module has been updated
• Simplify variable declaration and error return statements
• Remove the built-in language number format code mapping with Unicode values
• Remove the internal xlsxTabColor data type, using the xlsxColor data type instead of xlsxTabColor
• Unit tests and godoc updated
• Documentation website with multilingual: Arabic, German, Spanish, English, French, Russian, Chinese, Japanese, and Korean, which has been updated

Thank you

• IAkumaI (Valery Ozarnichuk)
• sillydong (Chen Zhidong)
• fudali113 (fudali)
• Juneezee (Eng Zer Jun)
• joehan109
• yicixin (壹次心)
• vb6iscool
• chengcxy (chengxinyao)
• lidp20
• JDavidVR (David)
• fsfsx
• cnmlgbgithub