New Language Features

Contributions

Introduce MSI-based installer (by @Rpinski in #2558)
ILSpyCmd: Added support for single-file bundles (by @Freakness109 in #2499)
Support loading compressed Xamarin assemblies (by @cpraehaus in #2471)
BAML decompiler: Add missing x:Static (by @wwh1004 and @bert2 in #2536)
Various improvements in pattern detection for records (by @yyjdelete in #2476)
Add TypeDefinitionDocuments to custom debug information data (by @davidwengier in #2578)
Fix MainWindow.OpenLink for net6.0 (by @yyjdelete in #2585)
Fix loading icons embedded as resources (by @AustinWise in #2595)
Use Trace.Listeners instead of Debug.Listeners (by @yyjdelete in #2555)
Updated ReadyToRun. (by @cshung in #2489)
Analyzers: Return valid modules only (by @zvirja in #2496)
Extensibility: Make SearchTermMatches virtual (by @beaverden in #2494)
Fix null check in BamlDecompilerTypeSystem.HasType (by @yyjdelete in #2509)
Updated Chinese translation (by @Nyerst in #2606)

Assembly resolver: GetReferenceAssemblyPath now picks closest available version
#1175: Added inassembly: and innamespace: search predicates
#2298: Allow to change the DecompilerTextView's font size through scrolling.
#2404: Cache decompilation results when switching tabs
Better support for voice commands/keyboard navigation
Proper support for long paths in Windows 10 in WholeProjectDecompiler.
#2608: Support for submenu items
Added hyperlinks to metadata explorer tables
Add simple public API for XamlDecompiler
Improved performance of LoadedAssembly.GetTargetFrameworkId, LoadedAssembly.GetRuntimePackAsync and others
#2368: Dim namespaces containing only internal types
Improved window menu
Added "Copy results" menu item to Analyzer
#2550 and #2551: Fix tab and focus handling
#2330: Added an option to toggle namespace sub-directory support in project export
Added ETW instrumentation to the decompiler for performance measurements
Added DecompilerTypeSystem.CreateAsync to allow asynchronous initialization
#2522: Support backticks in fully-qualified names when searching for type
#2520: The matched pairs are hardly visible in the dark theme
Add "Extract package entry" context menu entry for binaries inside bundles/packages
IL disassembly: Option to show raw offsets and instruction bytes
IL disassembly: Show header sizes

Dirkster99/AvalonDock#324 Navigator window a11y fixes
#2579: Use "ILSpyInstance" mutex to wait until the first ILSpy instance is ready to receive WM_COPYDATA
#2615: Overflow check did not work reliably due to fp rounding error
#2612: Decompilation of newarr with int.MaxValue causes OOME
#2622: Fix crash in ExpressionBuilder when decompiling object initializer composed of readonly properties
#2533: Various bugfixes in pinned-region detection.
#2547 and #2495: Improved decompilation of VB.NET decimal constants.
#2544: Do not produce syntax errors with interpolated strings
#2545: LINQ does not support null-forgiving operator, suppress transform.
#2541: Add explicit unchecked() around non-constant cast of constant to nint
#2518: "Other resources" section in resource files was not properly displayed
#2534: Handle default implementations of properties and events in interfaces
#2458, #2459: Fixed various correctness issues in IL code generated by C++/CLI
#2530: Stability fixes in pattern matching detection
#2378: Stability fixes in deconstruction detection
#2379: This fixes an issue where return statements within try-blocks could turn into goto statements
#2052: BAML-to-XAML: Resolve namespaces of properties
#1858 and #2188: Improved decompilation of display-classes
#2424: Suppress the string==null special-case within the string class itself
#2092: aggressively inline code in compiler-generated lambdas and expression trees
And many other fixes, for a full list click here

Allow to open ILSpy on project and package references
We now have an addin for VS2022 https://marketplace.visualstudio.com/items?itemName=SharpDevelopTeam.ILSpy2022 that is separate from the legacy addin.