The RC is live - new "Open from running process" and ilspycmd enhancements for agentic development as standout features. Bits for Windows, Linux and Mac: github.com/icsharpcode/...

Windows, Mac and Linux - the first preview of #ILSpy 11 brings the open-source #dotnet decompiler to all platforms thanks to #Avalonia. A few new features also made it: bookmarks, omnibar, open from #NuGet feed. github.com/icsharpcode/...

Release ILSpy 11.0 Preview 1 · icsharpcode/ILSpy

WarningWe 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 befo...

github.com

Another release today: #ILSpy 10.1 sports #dotnet 11 runtime-async support and improvements for decompilation skills in the area of resources. Grab the bits at github.com/icsharpcode/...

Release ILSpy 10.1 · icsharpcode/ILSpy

WarningWe 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 befo...

github.com

Our #ILSpy #vscode extension has (finally) hit 1.0 - check out the change log github.com/icsharpcode/... to see what's new and grab the bits github.com/icsharpcode/... via the various marketplaces

Want to test #dotnet 11 runtime-async decompilation? Grab the master bits github.com/icsharpcode/... and let us know!

A small service release for #ILSpy 10 is now available, mostly around UI bugs in assembly metadata github.com/icsharpcode/...

Release ILSpy 10.0.1 · icsharpcode/ILSpy

WarningWe 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 befo...

github.com

The #ILSpy #vscode extension has been updated to our 10.0 release + it introduces ILSpy-specific Language Model Tools allowing to use ILSpy analysis and decompilation in chats with agents + allows export of assemblies as full #dotnet csproj to file system marketplace.visualstudio.com/items?itemNa...

ilspy-vscode - Visual Studio Marketplace

Extension for Visual Studio Code - Decompile MSIL assemblies - support for full framework, .NET Core and .NET Standard

marketplace.visualstudio.com

It's a wrap! #ILSpy 10 is finally here, grab the bits at github.com/icsharpcode/... (as well as VS marketplace + nuget.org + Store (submitted))

Release ILSpy 10.0 · icsharpcode/ILSpy

PSA We DO NOT own the domain ilspy dot org See #3709 This release is based on .NET 10.0. Please make sure that you have it installed on your machine beforehand. New Language Features C# 13: allows...

github.com

The final preview of #ILSpy 10 is ready for download github.com/icsharpcode/...

The recording of last week's talk "Extension Everything Under the Covers" is now available www.youtube.com/watch?v=nP3J.... Slides can be found at github.com/christophwil... And in case you first want to watch the previous talk, please go to youtu.be/rexge_m4JR0?... #dotnet #csharp #ILSpy

Extension Everything Under the Covers by the ILSpy maintainers - .NET Stammtisch Linz

YouTube video by NET Stammtisch Linz

youtube.com

In Bart De Smet's #AzureDevSummit talk "Adding a new Language Feature to C# in 60 minutes" #ILSpy is a "supporting actor". Video www.youtube.com/watch?v=GnZW... and Gist gist.github.com/bartdesmet/d...

If you happen to be able to make to Linz, Austria on the 24th of February, please join us in-person for "Extension Everything Under the Covers" www.meetup.com/net-stammtis... #dotnet

Extension Everything Under the Covers by the ILSpy maintainers, Tue, Feb 24, 2026, 6:00 PM | Meetup

The .NET Stammtisch Linz Meetup is back! **What to expect:** 🗣️ Top speaker with an interesting topic 👥 Meet old and new friends from the community 🍕 Free food 🎉 Open-

meetup.com

The #code extension has been updated to #ILSpy 10 preview2 as well, and comes with support for NuGet packages, drag&drop and more! github.com/icsharpcode/... (installable via Visual Studio Marketplace & Open-VSIX)

Release 0.23.0 · icsharpcode/ilspy-vscode

New Features Upgrade to ICSharpCode.Decompiler 10.0 Preview 2 (see release notes for ILSpy 10.0 Preview 2 to get more details) Support for analyzing NuGet packages (add to assembly tree, browse co...

github.com

Based on the RTMs of #dotnet 10 and #Roslyn 5, we did manage to wedge in #ILSpy 10 preview 2 before the end of the year! Grab the detailed news and bits at github.com/icsharpcode/...

Release ILSpy 10.0 Preview 2 · icsharpcode/ILSpy

This preview release is based on .NET 10.0. Please make sure that you have it installed on your machine beforehand. New Language Features Update pattern detection to Roslyn 5.0 RTM C# 13: allows r...

github.com

The #ILSpy #vscode extension marketplace.visualstudio.com/items?itemNa... adds new features in 0.22 from our xplat efforts, details github.com/icsharpcode/...

Release 0.22.0 · icsharpcode/ilspy-vscode

New Features Support decompilation of .NET-compiled .wasm files Introduce "Base Types" and "Derived Types" elements for type nodes in tree (works similarly to ILSpy stand-alone application) (#563)...

github.com

A #csharp 14.0 feature to expect in the next #ILSpy preview for #dotnet 10 is extension members (not final, see github.com/icsharpcode/...)

IF you rock .NET 10.0 already, here github.com/icsharpcode/... is #ILSpy 10.0 Preview 1 that actually is built for #dotnet 10.0. Check out API diff - a description can be found in github.com/icsharpcode/...

We have archived the AvaloniaILSpy repository. Please use the #vscode extension marketplace.visualstudio.com/items?itemNa... which these days supports more features from WPF/Windows #ILSpy github.com/icsharpcode/... anyways.

Our #vscode extension got the #ILSpy 9.1 "treatment" as a precursor to more feature-rich releases in the future marketplace.visualstudio.com/items/icshar...

Speaking of "supporting actor" - #ILSpy in @david.wengier.com talk "What's Inside: A .NET assembly! (and how does Hot Reload change it?)" www.youtube.com/watch?v=Buxm...

Being a "supporting actor" in a talk is always nice to see - @chrisnas.bsky.social‬ on String and memory #UpdateConference #UCK25 #krakow #dotnet

PSA - #VisualStudio 17.14 ships with #ILSpy 8.2 (ICSharpCode.Decompiler 8.2.0.7535 to be precise)

Point Release Alert - github.com/icsharpcode/... has been released! #ILSpy 9.1 now executes on runtimes 8+, and comes with a nice amount of enhancements +bunch of bug fixes.

Release ILSpy 9.1 · icsharpcode/ILSpy

ILSpy 9.x is based on .NET 8.0. All artifacts except the self-contained distribution are built framework-dependent, which means .NET 8.0.x or later must be installed prior to starting ILSpy. Note t...

github.com

Our #vscode extension has been updated to #ILSpy 9 and now also supports analyzers. Release details at github.com/icsharpcode/..., install via marketplace.visualstudio.com/items?itemNa...

Release 0.20 · icsharpcode/ilspy-vscode

New Features Introduction of "Analyze" feature similar to ILSpy desktop application: You can analyze where a method is called, a type is used or an interface is implemented. See Wiki for a descrip...

github.com

@jaredpar.bsky.social Why is Roslyn 4.13 MIA? We already got a few issue reports for decompiling learn.microsoft.com/en-us/dotnet... but can't start fixing until we actually have the respective Roslyn available to us github.com/icsharpcode/...

yield-return decompiler failed · Issue #3400 · icsharpcode/ILSpy

Original: public static IEnumerable<int> Enumerate() { for (int i = 0; i < 10; i++) { int result; try { result = DateTime.Now.Second; } catch { continue; } yield return result; } } ILSpy: [Iterator...

github.com

The #ILSpy 9.0 decompiler has shipped! x/arm64 Bits are up on GH (zip, installer), #VisualStudio gallery, ilspycmd #dotnet tool and of course our nupkgs (Decompiler, BamlDecompiler, ILSpyX). An amalgamation of the release notes of the three previews and RC is available at github.com/icsharpcode/...

Release ILSpy 9.0 · icsharpcode/ILSpy

ILSpy 9.x is based on .NET 8.0. All artifacts except the self-contained distribution are built framework-dependent, which means .NET 8.0.x or later must be installed prior to starting ILSpy. Generi...

github.com

It's Release Candidate time! #ILSpy 9 is on the home stretch, grab the latest bits at github.com/icsharpcode/.... One big new feature made it into the RC - diagramming github.com/icsharpcode/...

You might be wondering what is the difference between our bsky and hachyderm.io/@ilspy accounts? The latter is "channel 9 from the cockpit" (or chatter from the engine room) with more details about the development of ILSpy vs more informational/support style of posts on bsky.

ILSpy 9.0 Preview 3 is finally here! You will notice a really huge batch of changes in our UI projects contributed by Tom Englert (of TomsToolbox.* fame), who is helping us modernize our WPF-based UI. Yes, there is also language goodness, for details & bits go to github.com/icsharpcode/...

Release ILSpy 9.0 Preview 3 · icsharpcode/ILSpy

ILSpy 9.x is based on .NET 8.0. All artifacts except the self-contained distribution are built framework-dependent, which means .NET 8.0 must be installed prior to starting ILSpy. Breaking Changes ...

github.com

Coming soon - ILSpy 9.0 Preview 3!