ILSpy - .NET Decompiler

Our new #ILSpy version 11.2 comes with major performance improvements for agent loops github.com/icsharpcode/...

Want to learn why and how we ported #ILSpy from WPF to #Avalonia to go x-platform? Watch the recording www.youtube.com/watch?v=1Gdc... (slides: github.com/christophwil...) #dotnet

From features to futures was the motto of #ILSpy 11.1 - fixing long-open bug reports and fuzzing nuget.org to find anything from crashes to missing patterns. More details and binaries at github.com/icsharpcode/...

Stampeded! from the @ilspy.bsky.social team is a new intelligent code review tool with semantic navigation: www.youtube.com/watch?v=r16Y... github.com/icsharpcode/...

You are interested in learning about #ILSpy's journey from #WPF to @avaloniaui.net? We are doing a livestreamed in-person event in Vienna in October! Sign up at dotnetdevs.at/events/2026-...

About a month after the last 10.x servicing release comes #ILSpy 11. Ported to @avaloniaui.net, now available for Linux, Mac and Windows! THE open-source #dotnet decompiler just got ways more useful, read about the three major areas of investment at github.com/icsharpcode/...

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/...

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/...

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/...

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...

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))

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

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

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)

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/...

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

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.

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...

@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/...

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/...

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/...

Coming soon - ILSpy 9.0 Preview 3!