[2.20.0]

Added

• Added DocumentFormat.OpenXml.Office.Drawing.Y2022.ImageFormula namespace
• Added DocumentFormat.OpenXml.Office.Word.Y2023.WordML.Word16DU namespace

Changed

• Marked OpenXmlSimpleType.TextValue as obsolete. This property was never meant to be used externally (#1284)
• Marked OpenXmlPackage.Package as obsolete. This will be an implementation detail in future versions and won't be accessible (#1306)
• Marked OpenXmlPackage.Close as obsolete. This will be removed in a later release, use Dispose instead (#1371)
• Marked OpenXmlPackage.SaveAs as obsolete as it will be removed in a future version (#1378)

Fixed

• Fixed incorrect file extensions for vbaProject files (#1292)
• Fixed incorrect file extensions for ImagePart (#1305)
• Fixed incorrect casing for customXml (#1351)
• Fixed AddEmbeddedPackagePart to allow correct extensions for various content types (#1388)

Thanks to the following for their contributions:

@Asbjoedt

[2.19.0]

Added

• .NET 6 target with support for trimming (#1243, #1240)
• Added DocumentFormat.OpenXml.Office.SpreadSheetML.Y2022.PivotRichData namespace
• Added DocumentFormat.OpenXml.Office.PowerPoint.Y2019.Main.Command namespace
• Added DocumentFormat.OpenXml.Office.PowerPoint.Y2022.Main.Command namespace
• Added Child RichDataPivotCacheGuid to DocumentFormat.OpenXml.Office2010.Excel.PivotCacheDefinition

Fixed

• Removed reflection usage where possible (#1240)
• Fixed issue where some URIs might be changed when cloning or creating copy (#1234)
• Fixed issue in FlatOpc generation that would not read the full stream on .NET 6+ (#1232)
• Fixed issue where restored relationships wouldn't load correctly (#1207)
• Upgraded Newtonsoft to version 13.0.2 for security issue (#1258)

@f1nzer
@rstm-sf

[2.18.0] - 2022-09-06

Added

• Added DocumentFormat.OpenXml.Office.SpreadSheetML.Y2021.ExtLinks2021 namespace (#1196)
• Added durableId attribute to DocumentFormat.OpenXml.Wordprocessing.NumberingPictureBullet (#1196)
• Added few base classes for typed elements, parts, and packages (#1185)

Changed

• Adjusted LICENSE.md to conform to .NET Foundation requirements (#1194)
• Miscellaneous changes for better perf for internal services

[2.17.1] - 2022-06-28

Removed

• Removed the preview namespace DocumentFormat.OpenXml.Office.Comments.Y2020.Reactions because this namespace will currently create invalid documents.

Fixed

• Restored the PowerPointCommentPart relationship to PresentationPart.

Deprecated

• The relationship between the PowerPointCommentPart and the PresentationPart is deprecated and will be removed in a future version.

v2.17.0 - *Unreleased*

[2.17.0] - 2022-06-15 - Unreleased

Added

• Added DocumentFormat.OpenXml.Office.Comments.Y2020.Reactions namespace (#1151)
• Added DocumentFormat.OpenXml.Office.SpreadSheetML.Y2022.PivotVersionInfo namespace (#1151)

Fixed

• Moved PowerPointCommentPart relationship to SlidePart (#1137)

Updated

• Removed public API analyzers in favor of EnablePackageValidation (#1154)

v2.16.0

Added

• Added method OpenXmlPart.UnloadRootElement that will unload the root element if it is loaded (#1126)

Updated

• Schema code generation was moved to the SDK project using C# code generators

Thanks to the following for their contribution:

@f1nzer

v2.15.0

[2.15.0] - 2021-12-16

Added

• Added samples for strongly typed classes and Linq-to-XML in the ./samples directory (#1101, #1087)
• Shipping additional libraries for some additional functionality in DocumentFormat.OpenXml.Features and DocumentFormat.OpenXml.Linq. See documentation in repo for additional details.
• Added extension method to support getting image part type (#1082)
• Added generated classes and FileFormatVersions.Microsoft365 for new subscription model types and constraints (#1097).

Fixed

• Fixed issue for changed mime type model/gltf.binary (#1069)
• DocumentFormat.OpenXml.Office.Drawing.ShapeTree is now available only in Office 2010 and above, not 2007.
• Correctly serialize new CellValue(bool) values (#1070)
• Updated known namespaces to be generated via an in-repo source generator (#1092)
• Some documentation issues around FileFormatVersions enum

Thanks to the following for their contributions:

@ThomasBarnekow
@stevenhansen
@JaimeStill
@jnyrup

v2.14.0

[2.14.0] - 2021-10-28

Added

• Added generated classes for Office 2021 types and constraints (#1030)
• Added Features property to OpenXmlPartContainer and OpenXmlElement to enable a per-part or per-document state storage
• Added public constructors for XmlPath (#1013)
• Added parts for Rich Data types (#1002)

Thanks to the following for their contributions:

@rmboggs
@ThomasBarnekow

v2.14.0-beta1

[2.14.0-beta1] - 2021-09-20

Added

• Added Features property to OpenXmlPartContainer and OpenXmlElement to enable a per-part or per-document state storage
• Added public constructors for XmlPath (#1013)
• Added parts for Rich Data types (#1002)
• Added methods to generate unique paragraph ids (#1000)
• Added generated classes for Office 2021 types and constraints (#1030)

Thanks to the following for their contributions:

@rmboggs
@ThomasBarnekow

v2.13.1

Fixed

• Fixed some nullability annotations that were incorrectly defined (#953, #955)
• Fixed issue that would dispose a TextReader when creating an XmlReader under certain circumstances (#940)
• Fixed a documentation type (#937)
• Fixed an issue with adding additional children to data parts (#934)
• Replaced some documentation entries that were generic values with helpful comments (#992)
• Fixed a regression in AddDataPartRelationship (#954)

Thanks to the following for their contributions:

@ThomasBarnekow
@sorensenmatias
@lklein53
@lindexi