New Language Features

• Adjusted pattern detection for Roslyn 3.11
• C# 7.0 pattern matching
• C# 9 covariant returns

Contributions

• Updated ReadyToRun. (by @cshung in #2489)
• Analyzers: Return valid modules only. (by @zvirja in #2496)
• Extensibility: Make SearchTermMatches virtual. (by @beaverden in #2494)
• Support loading compressed Xamarin assemblies. (by @cpraehaus in #2471)
• Fix null check in BamlDecompilerTypeSystem.HasType (by @yyjdelete in #2509)

Visual Studio AddIn

• Allow to open ILSpy on project and package references

Enhancements

• Add "Extract package entry" context menu entry for binaries inside bundles/packages.
• Better support for voice commands/keyboard navigation.
• Proper support for long paths in Windows 10 in WholeProjectDecompiler.
• IL disassembly: Option to show raw offsets and instruction bytes.
• IL disassembly: Show header sizes.
• Add simple public API for XamlDecompiler

Bug fixes

• #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.