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ILSpy v5.0 Release Notes

Release Date: 2019-09-19 // over 4 years ago

  • ILSpy 5.0

    🆕 New Language Features

    🆕 New Features

    • Decompile a set of assemblies to a solution (#1550 by @dymanoid)
    • 🆕 New BAML Decompiler
    • 🏗 MSIX for Microsoft Store: @onovotny added build support (including Azure Pipelines).
    • 🏁 Generate VS Windows Forms Designer-compliant code if a method is identified as Windows Forms InitializeComponent
    • ➕ Added new RemoveDeadStores option.
    • ➕ Added new AlwaysShowEnumMemberValues option.

    🛠 Decompiler Engine Improvements & Bugfixes

    • 👌 Improved stability of decompiler and disassembler on invalid metadata tokens.
    • 👌 Improved decompilation in case not all types/references are available.
    • ➕ Added switch-on-string pattern for empty string case.
    • ➕ Add support for ReadOnlySpan<T> initialization pattern

    - 👌 Improved decompilation of ref readonly delegates and return types.

    • Improved decompilation of ref typed expressions, in particular ref/in extension methods and in parameters.
      • 👌 Improved support for Mono yield return state machines and closure types.
      • 👌 Improved decompilation of LINQ queries
      • PDB generator now can emit "method stepping information" for async #1422

    👌 Improvements & Bugfixes

    • 🛠 Many minor bug and stability fixes.
    • 👌 Improved performance in ILInlining step
    • VSIX: Fix issue of missing dependencies

    💻 UI Improvements

    • 💻 Avoid blocking the UI when waiting on assembly load while restoring the saved position in the treeview
    • 👌 Support obfuscated names in treeview and search #1359
    • 🖨 Escape non-printable characters in IL view
    • Rework C# decompiler options dialog (unify language settings panel)
    • 🔧 Make indentation of decompiled code configurable.
    • 🌐 Chinese translation by @maikebing (#1299) screenshots
    • Small improvements in search panel by @mcpiroman (#1476)
    • 👉 Show error message if an entity cannot be analyzed instead of crashing.
    • 👌 Improved linking in the decompiler view:
      • method group / delegate references
      • the constructor of an attribute is reachable, by clicking on the open/close parenthesis.
      • fixed fields are now properly linked
    • ➕ Added matching bracket highlighting
    • ⚡️ Updated to AvalonEdit 6.0 Preview

    dotnet ilspycmd Tool

    • ➕ Add -d|-debuginfo option See Demo app
    • ➕ Add -r|-referencepath option

    Architectural Changes

    • 👍 We dropped support for all TFMs except netstandard2.0 #1416
    • ✅ Reactivate many tests from old decompiler

    Known issues & limitations

    • C# 8.0 nullable reference types metadata only supports the latest format. Note that this is a breaking change and assemblies generated by older preview versions of C# 8 are not supported. (See #1619 (comment))
    • 👍 Generic local functions are not yet supported (#1588)
    • "Open assembly from GAC" may require administrator privileges (#1498)
    • 👍 Matching bracket highlighting does not yet support all language features that introduce new syntax.