1.26.0 - 2022-12-21

### Added

- Extended flag options for the Reader `load()` and Writer `save()` methods
- Apply Row/Column limits (1048576 and XFD) in ReferenceHelper [PR #3213](#3213)
- Allow the creation of In-Memory Drawings from a string of binary image data, or from a stream. [PR #3157](#3157)
- Xlsx Reader support for Pivot Tables [PR #2829](#2829)
- Permit Date/Time Entered on Spreadsheet to be calculated as Float [Issue #1416](#1416) [PR #3121](#3121)

### Changed

- Nothing

### Deprecated

- Direct update of Calculation::suppressFormulaErrors is replaced with setter.
- Font public static variable defaultColumnWidths replaced with constant DEFAULT_COLUMN_WIDTHS.
- ExcelError public static variable errorCodes replaced with constant ERROR_CODES.
- NumberFormat constant FORMAT_DATE_YYYYMMDD2 replaced with existing identical FORMAT_DATE_YYYYMMDD.

### Removed

- Nothing

### Fixed

- Fixed handling for `_xlws` prefixed functions from Office365 [Issue #3245](#3245) [PR #3247](#3247)
- Conditionals formatting rules applied to rows/columns are removed [Issue #3184](#3184) [PR #3213](#3213)
- Treat strings containing currency or accounting values as floats in Calculation Engine operations [Issue #3165](#3165) [PR #3189](#3189)
- Treat strings containing percentage values as floats in Calculation Engine operations [Issue #3155](#3155) [PR #3156](#3156) and [PR #3164](#3164)
- Xlsx Reader Accept Palette of Fewer than 64 Colors [Issue #3093](#3093) [PR #3096](#3096)
- Use Locale-Independent Float Conversion for Xlsx Writer Custom Property [Issue #3095](#3095) [PR #3099](#3099)
- Allow setting AutoFilter range on a single cell or row [Issue #3102](#3102) [PR #3111](#3111)
- Xlsx Reader External Data Validations Flag Missing [Issue #2677](#2677) [PR #3078](#3078)
- Reduces extra memory usage on `__destruct()` calls [PR #3092](#3092)
- Additional properties for Trendlines [Issue #3011](#3011) [PR #3028](#3028)
- Calculation suppressFormulaErrors fix [Issue #1531](#1531) [PR #3092](#3092)
- Permit Date/Time Entered on Spreadsheet to be Calculated as Float [Issue #1416](#1416) [PR #3121](#3121)
- Incorrect Handling of Data Validation Formula Containing Ampersand [Issue #3145](#3145) [PR #3146](#3146)
- Xlsx Namespace Handling of Drawings, RowAndColumnAttributes, MergeCells [Issue #3138](#3138) [PR #3136](#3137)
- Generation3 Copy With Image in Footer [Issue #3126](#3126) [PR #3140](#3140)
- MATCH Function Problems with Int/Float Compare and Wildcards [Issue #3141](#3141) [PR #3142](#3142)
- Fix ODS Read Filter on number-columns-repeated cell [Issue #3148](#3148) [PR #3149](#3149)
- Problems Formatting Very Small and Very Large Numbers [Issue #3128](#3128) [PR #3152](#3152)
- XlsxWrite preserve line styles for y-axis, not just x-axis [PR #3163](#3163)
- Xlsx Namespace Handling of Drawings, RowAndColumnAttributes, MergeCells [Issue #3138](#3138) [PR #3137](#3137)
- More Detail for Cyclic Error Messages [Issue #3169](#3169) [PR #3170](#3170)
- Improved Documentation for Deprecations - many PRs [Issue #3162](#3162)

Author: MarkBaker

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com)
 and this project adheres to [Semantic Versioning](https://semver.org).
 
-## Unreleased - TBD
+## 1.26.0 - 2022-12-21
 
 ### Added