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ILSpy 6.0
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@christophwille christophwille released this 07 Jul 17:00
· 2027 commits to master since this release
v6.0
79f2c19

Major Changes of Note

  • ILSpy 6.0 sports a multi-tab docking interface
  • ILSpy 6.0 comes with a new Metadata Explorer
  • ILSpy 6.0 has new icons for high-DPI support
  • ILSpy 6.0 requires at least .NET 4.7.2 (v5.0 required .NET 4.6.2)

New Language Features

  • C# 8.0: Indexing and Slices (Ranges)
  • C# 7.0: Changes to syntactic disambiguation of generic identifiers
  • C# 7.3 pattern-based fixed statement
  • C# 8.0 Default Interface Methods
  • C# 8.0 Async streams (currently not covering await foreach)
  • C# 8.0 await using
  • C# 8.0 Readonly members
  • Decompile calli instructions using C# 9.0 function pointer syntax
  • Improved support for Unsafe intrinsics
  • Support for generic and static local functions

UI Improvements

  • Docking and multi tab support (see #1725 and #1801)
  • Metadata Explorer (see https://github.com/icsharpcode/ILSpy/wiki/Metadata-Explorer)
  • Assembly list dropdown in toolbar, enhanced assembly list management
  • Show target frameworks next to the assembly version in the tree-view
  • Using the middle mouse button to click on tree nodes and links will open the decompilation result in a new tab.
  • "Select PDB" context menu: allows to change the PDB file resolved by ILSpy or pick one from a different location
  • Added a "Debug Metadata Explorer" node for portable PDBs
  • Use XAML for icons (high DPI)
  • New icons (based on VS 2017 icon pack) (#1704 thanks to @Rpinski)
  • RichText Tooltips (#1654)
  • Add "Open with ILSpy" entry to the Windows Explorer context menu on exe and dll files (via Options/Misc)
  • Empty metadata tables can now be hidden from the tree view
  • Folding for XAML output (thanks to @jogibear9988)
  • Add "Reset to defaults" in Options dialog
  • Dynamic assembly list generation for target framework

Improvements & Bugfixes

  • Project export: Added an option to allow SDK-style format for project files. (#2031 by @dymanoid)
  • Solution and project decompilation: Add missing ProjectTypeGuids
  • Add search features (thanks to @miloush and @sailro)
  • #1498: Remove Fusion API usage: Use standard file enumeration instead. This should enable us to use the GAC even with restricted access, as only the LIST permission is required.
  • Fix DotNetCorePathFinder to properly support netstandard2.1
  • Fix multi-module support
  • Updated links to MS Docs (#2030 by @AustinWise)
  • Improve ReduceNestingTransform by considering nested containers (#1880 by @Chicken-Bones)
  • Analyzers: Added "Implements interface"-Analyzer (#2028 by @dymanoid)
  • Analyzer follow type forwarders (#1846 by @yyjdelete)
  • The decompiler now supports Scalar Replacement Of Aggregates, which by default only works on display-classes and display-structs. There is an option to make it affect all instances and uses of plain types containing fields only. NOTE: It is still in preview stage. You can activate it when using a debug build.
  • Added support for null-propagation on unconstrained generic expressions
  • Added support for [module: NullablePublicOnly]
  • Enhanced assembly resolution to distinguish target frameworks and use the correct references in case there are multiple versions of framework assemblies loaded.
  • Better decompilation of local functions, pinned regions and display-classes
  • Disassembler: actually make use of the cancellation token
  • Support VB Select Case on string
  • Display System.Void as struct (#1835 by @yyjdelete)
  • Properly decompile auto events with tuples
  • Do not change accessibility of non-transformed local functions
  • Improve drag&drop support (#1860)
  • Fix bug in stackalloc initializer detection involving Span<decimal> (see #1855 by @yyjdelete)
  • Added struct constructor initializer pattern
  • DotNetCorePathFinder: Various bug fixes when working with .net core assemblies
  • Transform post-increment on float/double (#1769 thanks to @Chicken-Bones)
  • Fix extra minus sign when formatting -0 on .NET Core 3.0 (#1790 thanks to @Chicken-Bones)
  • Fix sealed modifier on interface methods with no body (#1792 thanks to @Chicken-Bones)
  • Fix NullReferenceException when foreach decompilation is turned off (#1754 thanks to @davidwengier)
  • Fixed performance problem when using an assembly from a MemoryStream (#1763 thanks to @yyjdelete)

Ready2Run (R2R)

PDB Generation

  • Improved sequence points of try-catch statements
  • Improved generation of sequence points (#1967 by @jacdavis)
  • PDB generation: Use correct sequence points in LINQ expressions and many smallish bug fixes

dotnet ilspycmd Tool

  • New option: usepdb (for improved variable naming)
  • Breaking change: option debuginfo renamed to genpdb
  • #1740: Add LanguageVersion, RemoveDeadCode and RemoveDeadStores switches

ILSpy pwsh cmdlets

  • Show a progress bar during decompilation
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