dnSpy - .NET assembly editor, debugger, decompiler

[blue_devil]

dnSpy v6.6.1 Release Candidate 1 14-05-2026


New features:

• Added a new String References tool window, which allows viewing all strings present in the .NET metadata and method bodies (thanks to @Washi1337).
• Added a new .NET 10 distribution (dnSpy-net), which is not self-contained and contains both x64 and x86 binaries. This is intended as a more modern alternative to the dnSpy-netframework distribution. This is the recommended distribution if you have .NET 10 already installed on your system.
• Added support for the Windows 11 Snap Layout feature for dnSpy windows.
• dnSpy now detects when it is being run under Wine on Linux and disables WPF hardware acceleration to improve compatibility.
• SDK style projects can now be exported from dnSpy.Console.
• dnSpy's XML syntax highlighter now properly supports CDATA.
• Added support for the AllowByRefLike metadata flag on generic parameters in edit dialogs.
• Added support for generating .slnx solution files when exporting the decompilation to a project file.

Improvements and bug fixes:

• Updated from .NET 8 to .NET 10.
• Ensure the Save Module window appears for at least some time on screen to signal that the module was actually written.
• Fixed the decompilation of the calling convention field of DllImport for .NET.
• Fixed export of resources with MemoryStream type when generating RESX files.
• Added additional monospace fallback fonts to improve compatibility for running dnSpy under Wine.
• Fixed incorrect thread exit codes being displayed in the debugger Output dialog.
• Improved UI tooltips for metadata members with partially corrupted metadata.
• Added more safeguards against StackOverflowException in the decompiler.
• Fixed a rare decompiler crash relating to the C# fixed statement.
• Properly escape resource names in the treeview.
• BAML decompiler now adds x:FieldModifier when necessary.
• Improved exporting BAML files to project files.
• Tweaked C# decompiler variable naming algorithm.
• Fixed BAML decompiler moving readonly properties into XML attributes, resulting in invalid code.
• The assembly resolver now considers the *.runtimeconfig.json file.
• Fixed incorrect syntax in IL disassembler and improved accuracy.
• Truncate the content of the long string resources when displaying them.
• Fixed unnatural scrolling on laptops equipped with precision touchpads.
• Updated translations.

Dependency updates:

• Updated dnlib to 4.5.0
• Updated VS MEF to 17.13.41
• Updated Roslyn to 5.3.0
• Updated NuGet.Configuration to 7.6.0
• Updated dbgshim.dll component to the latest version

Repo

https://github.com/dnSpyEx/dnSpy/

Release

https://github.com/dnSpyEx/dnSpy/releases/tag/v6.6.0-rc1