ILSpy 11.0 Preview 1

[christophwille]

Warning

We DO NOT own the domain ilspy[.]org See #3709
Download ILSpy only from GitHub Releases!

This release is based on .NET 10.0. Please make sure that you have it installed on your machine beforehand.

Note for Mac users: see https://github.com/icsharpcode/ILSpy/wiki/Build-Artifacts#running-the-macos-artifact because the ILSpy.app is neither signed nor notarized.

Avalonia Cross Platform Port

• PR Avalonia 12 Port and Removal of the WPF UI #3755: Avalonia 12 Port and Removal of the WPF UI
• PR Metadata explorer cleanup, flags-filter fixes, and WPF row-details parity #3759: Metadata explorer cleanup, flags-filter fixes, and WPF row-details parity
• PR Round-trip the legacy WPF SessionSettings shape #3766: Round-trip the legacy WPF SessionSettings shape
• PR Build, test, and package ILSpy on Linux and macOS in CI #3768: Build, test, and package ILSpy on Linux and macOS in CI
• PR Show text-based resources inline with syntax highlighting #3861: Show text-based resources inline with syntax highlighting
• PR Avalonia 12.1 #3875: Avalonia 12.1
• PR Keep BAML decompilation working when WPF assemblies are missing #3876: Keep BAML decompilation working when WPF assemblies are missing

New Features

• PR Unpack !AvaloniaResources into per-file resource tree nodes #3847: Unpack !AvaloniaResources into per-file resource tree nodes
• PR Fix #3797: resolve ilspycmd -t type names with fuzzy matching #3801: Fix System.InvalidOperationException: Could not find type definition, but for types that do exist #3797: resolve ilspycmd -t type names with fuzzy matching
• PR Add a bookmarks feature for the decompiled C# view #3789: Add a bookmarks feature for the decompiled C# view
• PR Add omnibar breadcrumb and search bar above the decompiled code #3786: Add omnibar breadcrumb and search bar above the decompiled code
• PR Make the override modifier a link to the overridden member #3769: Make the override modifier a link to the overridden member
• PR Add Open from NuGet feed dialog for browsing and opening packages #3762: Add Open from NuGet feed dialog for browsing and opening packages

User Interface

• PR Fix #2078: Generic local functions not highlighted properly #3857: Fix Generic local functions not highlighted properly #2078: Generic local functions not highlighted properly
• PR Fix #3845: Add option to expand XML documentation comments #3855: Fix Expand everything please #3845: Add option to expand XML documentation comments
• PR Toggle the fold under the right-click, not at the caret #3814: Toggle the fold under the right-click, not at the caret
• PR Syntax-colour analyzer signatures with bold type names (#2164) #3812: Syntax-colour analyzer signatures with bold type names (Make type names (classes, structs, interfaces) in the Analyze panel bold or underline for better readability #2164)

Enhancements

• PR Decompile await on dynamic expressions #3872: Decompile await on dynamic expressions
• PR Fix #3804: decompile foreach over inline array #3837: Fix Decompiling foreach over an inline array emits invalid '<PrivateImplementationDetails>.InlineArrayElementRef' #3804: decompile foreach over inline array
• PR Fix #3777: decompile runtime async without a separate C# 15 setting #3791: Fix Decompiling runtime async should not be gated on C# 15. #3777: decompile runtime async without a separate C# 15 setting
• PR Bound XamarinCompressedFileLoader against crafted XALZ headers #3843: Bound XamarinCompressedFileLoader against crafted XALZ headers
• PR Bound WebCilFile section access against mapped-view length #3842: Bound WebCilFile section access against mapped-view length
• PR Harden BAML reader against crafted-resource crashes #3841: Harden BAML reader against crafted-resource crashes
• PR Allow overriding an assembly's target framework for reference resolution #3816: Allow overriding an assembly's target framework for reference resolution
• PR Bound .rsrc resource-tree parsing against crafted input #3840: Bound .rsrc resource-tree parsing against crafted input
• PR Guard against OOB read when bundle signature is at file start #3838: Guard against OOB read when bundle signature is at file start
• PR Display the IL 'tail.' prefix in C# output #3818: Display the IL 'tail.' prefix in C# output
• PR Migrate the VS extension to an SDK-style VSIX (dotnet build) and retire the VS2017/2019 add-in #3808: Migrate the VS extension to an SDK-style VSIX (dotnet build) and retire the VS2017/2019 add-in
• PR Fix #3799 and three related stackalloc initializer decompilation defects #3802: Fix System.ArgumentException: given Block is invalid! #3799 and three related stackalloc initializer decompilation defects
• PR Compute public-key tokens with a managed SHA-1 #3780: Compute public-key tokens with a managed SHA-1

Documentation

• PR CONTRIBUTING.md for the AI era #3868: CONTRIBUTING.md for the AI era
• PR Add decompiler architecture document #3870: Add decompiler architecture document

Testing / Infrastructure

• PR Run the decompiler test suite on Linux #3771: Run the decompiler test suite on Linux
• PR Use cross-platform separators for the FSharp.Core.dll test path #3788: Use cross-platform separators for the FSharp.Core.dll test path
• PR Adopt SDK default Compile items in Decompiler and Decompiler.Tests #3807: Adopt SDK default Compile items in Decompiler and Decompiler.Tests
• PR Give the PdbGen tests real coverage via the compiler's breakpoint map #3815: Verify generated PDBs against the compiler's breakpoint map (PdbGen fixtures previously passed vacuously)
• PR Don't assert decompiled local types match the signature #3836: Don't assert decompiled local types match the signature
• PR Add fine-grained debug steps with highlighting for C# and ILAst #3839: Add fine-grained debug steps with highlighting for C# and ILAst
• PR Set OpenSSL SHA1 flag in build scripts #3849: Set OpenSSL SHA1 flag in build scripts
• PR Add test coverage for untested corners of implemented language features #3859: Add test coverage for untested corners of implemented language features
• PR Upload TestCases folder as artifact when CI tests fail #3874: Upload TestCases folder as artifact when CI tests fail

Contributions

• PR Fix #3850: recover ReadOnlySpan<T> array literals from the legacy lazy cache #3851: Fix Decompiling a ReadOnlySpan<T> built from an array literal references the undeclared <PrivateImplementationDetails> cache (does not recompile) #3850: recover ReadOnlySpan array literals from the legacy lazy cache — @sailro, thank you!
• PR Handle negative dictionary capacity in string switch transform #3878: Handle negative dictionary capacity in string switch transform — @ds5678, thank you!
• PR Fix #3826: wrap an overflowing constant subexpression in unchecked() #3828: Fix Inlined hash accumulator becomes a constant overflow (CS0220) in decompiled GetHashCode #3826: wrap an overflowing constant subexpression in unchecked() — @sailro, thank you!
• PR Fix #3825: reconstruct async iterators with [EnumeratorCancellation] and await in finally #3831: Fix async IAsyncEnumerable with [EnumeratorCancellation] and await in finally decompiles to a raw state machine #3825: reconstruct async iterators with [EnumeratorCancellation] and await in finally — @sailro, thank you!
• PR Fix #3827: keep the while-loop for a ref local used after the loop (avoid an uninitialized hoisted ref decl) #3830: Fix Ref local used after a loop is emitted as an uninitialized 'ref T x;' (CS8174) #3827: keep the while-loop for a ref local used after the loop (avoid an uninitialized hoisted ref decl) — @sailro, thank you!
• PR Fix #3821: keep ref-struct conditional as if/return, not ?. / ?? (CS8978) #3823: Fix Decompiler emits ?. / ?? over a ref-struct-returning member, producing CS8978 (cannot be made nullable) #3821: keep ref-struct conditional as if/return, not ?. / ?? (CS8978) — @sailro, thank you!
• PR Fix #3820: decompile dynamic ~ as ~x instead of an unsupported-opcode error #3822: Fix Decompiler emits (object)/*OpCode not supported: DynamicUnaryOperatorInstruction*/ for ~ (one's-complement) on a dynamic operand (CS1525) #3820: decompile dynamic ~ as ~x instead of an unsupported-opcode error — @sailro, thank you!
• PR Fix decompiler tests project inside VS #3796: Fix decompiler tests project inside VS — @DoctorKrolic, thank you!
• PR dev: fix editorconfig parsing on some editors #3787: dev: fix editorconfig parsing on some editors — @mochaaP, thank you!
• PR Fix the "Use nested namespace structure" option #3879: Fix the "Use nested namespace structure" option — @ds5678, thank you!

Bug Fixes

• PR Reject negative char index in the length-and-char string switch #3881: Reject negative char index in the length-and-char string switch
• PR Fix #3475: Emit 'true ? null : new { ... }' for null of anonymous type #3866: Fix null of anonymous type #3475: Emit 'true ? null : new { ... }' for null of anonymous type
• PR Fix #3860: Avoid 'out var' if the variable recurs in the argument list #3864: Fix Decompiled out variables fail to recompile when the same local is passed as multiple out arguments #3860: Avoid 'out var' if the variable recurs in the argument list
• PR Fix dynamic event-assignment decompilation leaking is-event opcode #3873: Fix dynamic event-assignment decompilation leaking is-event opcode
• PR Simplify hoisted null-guard fold to reference-type constructor chains #3863: Simplify hoisted null-guard fold to reference-type constructor chains
• PR Fix #3824: fold a hoisted argument null-guard at the ILAst level #3852: Fix Chained constructor call emitted as illegal in-body this..ctor(...) when a null-check is hoisted before it #3824: fold a hoisted argument null-guard at the ILAst level
• PR Fix #3754: omit async stepping info for runtime-async methods #3832: Fix NullReferenceException generating portable PDB for runtime-async methods (.NET 11) #3754: omit async stepping info for runtime-async methods
• PR Fix Export NullReferenceException for images/resourcexsd.baml #3806: Fix Export NullReferenceException for images/resourcexsd.baml
• PR Fix #3774: keep field initializers when decompiling a static ctor alone #3792: Fix "IL with C#" view: assertion in TransformFieldAndConstructorInitializers when decompiling a static constructor in isolation #3774: keep field initializers when decompiling a static ctor alone
• PR Skip missing session assemblies when navigating on launch #3790: Skip missing session assemblies when navigating on launch
• PR Escape reserved Windows device names in output file names #3776: Escape reserved Windows device names in output file names

For a full list of changes click here.

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This discussion was created from the release ILSpy 11.0 Preview 1.

[MihaMarkic]

macos 26.5.2 says "“ILSpy” is damaged and can’t be opened. You should move it to the Bin." Am I doing something wrong?

[christophwille]

You did see the "Note for Mac users" up top?

[MihaMarkic]

lol, managed to miss it, thanks