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Fast and portable delta encoding for .NET and .NET Core
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Fast and portable delta encoding library for .NET

deltaq is a .NET Core class library


  • Manual install: Download from the Releases
  • NuGet install: Follow instructions on the NuGet page or enter Install-Package deltaq in the Package Manager console.

Supported formats

Format Create patches Apply patches
bsdiff Yes Yes
vcdiff No No


  • Add support for applying VCDIFF patches. VCDIFF format is defined in RFC 3284 with several existing implementations. Jon Skeet's MiscUtil already has an implementation of the patch portion of VCDIFF, but much more work is needed to create a C# patch generator.
  • Add platform-specific libraries to make usage as simple as possible. There's also room to support memory-mapped files and similar significant optimizations.
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