ILSpy is the open-source .NET assembly browser and decompiler.
Development started after Red Gate announced that the free version of .NET Reflector would cease to exist by end of February 2011.
ILSpy requires the .NET Framework 4.0.
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Detailed release history is tracked in our wiki.
Viewing IL (Build 199)
Navigating Types (Build 199)
Saving Resources (Build 199)
Decompiling a Type to C# (Build 199)
Decompiling method with ‘yield return’ (Build 528)