GroupDocs.Annotation for .NET 26.6 is now available as of June 2026. This release introduces a modular NuGet package layout with per‑target‑framework runtime packages, adds first‑class .NET 6 and .NET 8 builds, upgrades the underlying document engines, and includes a collection of bug fixes.

What’s new in this release

Key Category Summary
ANNOTATIONNET-2654 ✨ Enhancement NuGet package split — per-target-framework runtime packages (adds .NET 6 and .NET 8)
ANNOTATIONNET-2655 ✨ Enhancement Upgrade the underlying document engines
ANNOTATIONNET-2661 ⚠️ Enhancement Spreadsheet text-replacement font colour must now be set explicitly
ANNOTATIONNET-2656 🔧 Fix Fix image annotations failing on presentations (PPTX)
ANNOTATIONNET-2657 🔧 Fix Fix Visio (Diagram) area/redaction annotations rendering as empty outlines
ANNOTATIONNET-2658 🔧 Fix Fix ArgumentOutOfRangeException when removing annotations from Visio documents with hyperlinks
ANNOTATIONNET-2659 🔧 Fix Fix Diagram GetDocumentInfo returning no text lines
ANNOTATIONNET-2660 🔧 Fix Restore slide-preview generation for presentations
ANNOTATIONNET-2638 🔧 Fix Fix System.NotImplementedException when annotating image files
ANNOTATIONNET-2103 🔧 Fix Fix NullReferenceException when reading annotations from HTML documents with footnotes or endnotes

Code example

# Unchanged — the router picks the right runtime package for your TFM
dotnet add package GroupDocs.Annotation

# Or, if you prefer, install a specific runtime package directly
dotnet add package GroupDocs.Annotation.Net80

How to get the update

NuGet

  • Install the router package (automatically resolves the appropriate runtime package):

    dotnet add package GroupDocs.Annotation

  • Install a specific runtime package directly, e.g.:

    dotnet add package GroupDocs.Annotation.Net462
    dotnet add package GroupDocs.Annotation.Net60
    dotnet add package GroupDocs.Annotation.Net80

Direct download

No direct download links are provided for this release.

Resources

No additional resources are listed in the release notes.