ILSpy 3.0
Release notes are available in the Wiki.
If you want the "good old" ILSpy, please download ILSpy_binaries_Net46_Win_3.0.0.3447.zip - this is the tried-and-true Windows WPF UI.
NuGet: https://www.nuget.org/packages/ICSharpCode.Decompiler/
Visual Studio addin: https://marketplace.visualstudio.com/items?itemName=SharpDevelopTeam.ILSpy
Console info: https://github.com/icsharpcode/ILSpy/tree/master/ICSharpCode.Decompiler.Console
PowerShell cmdlets info: https://github.com/icsharpcode/ILSpy/tree/master/ICSharpCode.Decompiler.PowerShell