#develop is a free Integrated Development Environment (IDE) for C#, VB.NET, Boo, IronPython, IronRuby and F# projects on Microsoft's .NET platform. It is written (almost) entirely in C#, and comes with features you would expect in an IDE plus a few more.

The #develop project started on September 11th, 2000. The project was initiated by Mike Krüger. In the course of the project, several contributors joined in.

Looking for the tech notes (Fine Art of Commenting, Coding Style Guide, and more)? These can be found as rtf files in doc/technotes

#Develop can be compiled using the supplied .bat files, or in #Develop itself.

The portable ProGPU/Silk.NET build consumes the public LibreWPF and LibreWinForms 0.1.0-preview.11 packages from NuGet.org:

dotnet build src/Main/SharpDevelop/SharpDevelop.Full.LibreWpf.csproj -c Release

Run ./eng/librewpf-public-preview-smoke.sh on macOS or Linux to restore into a clean package cache, verify the complete LibreWPF/LibreWinForms/ProGPU version set, build the ResourceToolkit-enabled workbench, and exercise StartPage, Search/Replace, ClassDiagram, the LineCounter WinForms designer, the WPF/XAML designer, ResourceToolkit, HexEditor, and Reporting in isolated configuration directories. Both designer gates verify typed selection, editing, undo/redo, serialization, presentation, clean shutdown, and unchanged source fixtures. The WPF designer gate also selects a real child through its typed outline model, verifies that the design surface and property grid follow that selection, edits the selected child with undo/redo serialization, and restores the prior selection before closing the document. That outline lane is source-guarded against reflection-based field, method, or event discovery.

• Windows Vista or higher.
• .NET 4.5
• Visual C++ 2008 SP1 Runtime

• Microsoft Build Tools 2013
• .NET 3.5 SP1
• .NET 4.5 SDK (part of Windows SDK 8.0)
• Windows SDK 7.1
• Windows SDK 7.0 (optional; C++ compiler needed for profiler)
• Windows PowerShell
• If you have cloned the SD git repository: git must be available on your PATH

• Avalon Dock : New BSD License (BSD) (thanks to Adolfo Marinucci)
• Graph#
• IQToolkit
• Irony
• ITextSharp
• log4Net
• Mono T4
• Mono.Cecil: MIT License (thanks to Jb Evain)
• Sharp Svn
• SQLite
• WPFToolkit

• IronPython
• IronRuby
• NuGet
• NUnit
• OpenCover
• WiX

• AvalonEdit
• Debugger.Core
• ICSharpCode.Core
• ICSharpCode.Decompiler
• NRefactory
• SharpTreeView
• WPF Designer

• Mike Krüger (Project Founder)
• Daniel Grunwald (Technical Lead)
• Andreas Weizel
• Matt Ward
• David Srbecky(Debugger)
• Siegfried Pammer
• Peter Forstmeier(#Develop Reports)

• Christoph Wille (PM)
• Bernhard Spuida (Kalfaktor)

• Mike Krüger (Project Founder)
• Alexandre Semenov
• Andrea Paatz
• Christian Hornung
• David Alpert
• Denis ERCHOFF
• Dickon Field
• Georg Brandl
• Ifko Kovacka
• Itai Bar-Haim
• Ivan Shumilin
• John Reilly
• John Simons
• Justin Dearing
• Markus Palme
• Mathias Simmack
• Matt Everson
• Nathan Allan
• Nikola Kavaldjiev
• Philipp Maihart
• Poul Staugaard
• Robert Pickering
• Robert Zaunere
• Roman Taranchenko
• Russell Wilkins
• Scott Ferrett
• Sergej Andrejev
• Shinsaku Nakagawa
• Tomasz Tretkowski
• Troy Simpson