Neo.Extensions 3.9.1

Prefix Reserved
dotnet add package Neo.Extensions --version 3.9.1
                    
NuGet\Install-Package Neo.Extensions -Version 3.9.1
                    
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Neo.Extensions" Version="3.9.1" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="Neo.Extensions" Version="3.9.1" />
                    
Directory.Packages.props
<PackageReference Include="Neo.Extensions" />
                    
Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add Neo.Extensions --version 3.9.1
                    
#r "nuget: Neo.Extensions, 3.9.1"
                    
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
#:package Neo.Extensions@3.9.1
                    
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.
#addin nuget:?package=Neo.Extensions&version=3.9.1
                    
Install as a Cake Addin
#tool nuget:?package=Neo.Extensions&version=3.9.1
                    
Install as a Cake Tool

<p align="center"> <a href="https://neo.org/"> <img src="https://neo3.azureedge.net/images/logo%20files-dark.svg" width="250px" alt="neo-logo"> </a> </p>

<h3 align="center">CSharp implementation of the neo blockchain protocol.</h3>

<p align="center"> A modern distributed network for the Smart Economy. <br> <a href="https://docs.neo.org/"><strong>Documentation »</strong></a> <br> <br> <a href="https://github.com/neo-project/neo"><strong>Neo</strong></a> · <a href="https://github.com/neo-project/neo-modules">Neo Modules</a> · <a href="https://github.com/neo-project/neo-devpack-dotnet">Neo DevPack</a> </p> <p align="center"> <a href="https://twitter.com/neo_blockchain"> <img src=".github/images/twitter-logo.png" width="25px"> </a>   <a href="https://medium.com/neo-smart-economy"> <img src=".github/images/medium-logo.png" width="23px"> </a>   <a href="https://neonewstoday.com"> <img src=".github/images/nnt-logo.jpg" width="23px"> </a>   <a href="https://t.me/NEO_EN"> <img src=".github/images/telegram-logo.png" width="24px" > </a>   <a href="https://www.reddit.com/r/NEO/"> <img src=".github/images/reddit-logo.png" width="24px"> </a>   <a href="https://discord.com/invite/rvZFQ5382k"> <img src=".github/images/discord-logo.png" width="25px"> </a>   <a href="https://www.youtube.com/neosmarteconomy"> <img src=".github/images/youtube-logo.png" width="32px"> </a>  

<a href="https://neo.org/"> <img src=".github/images/we-chat-logo.png" width="25px"> </a>   <a href="https://weibo.com/neosmarteconomy"> <img src=".github/images/weibo-logo.png" width="28px"> </a> </p> <p align="center"> <a href="https://github.com/neo-project/neo/releases"> <img src="https://badge.fury.io/gh/neo-project%2Fneo.svg" alt="Current neo version."> </a> <a href='https://coveralls.io/github/neo-project/neo'> <img src='https://coveralls.io/repos/github/neo-project/neo/badge.svg' alt='Coverage Status' /> </a> <a href="https://deepwiki.com/neo-project/neo"> <img src="https://deepwiki.com/badge.svg" alt="Ask DeepWiki."> </a> <a href="https://github.com/neo-project/neo/blob/master/LICENSE"> <img src="https://img.shields.io/badge/license-MIT-blue.svg" alt="License."> </a> </p>

<p align="center"> <a href="https://codespaces.new/neo-project/neo"> <img src="https://github.com/codespaces/badge.svg" alt="Open in GitHub Codespaces."> </a> </p>

Table of Contents

  1. Overview
  2. Project structure
  3. Related projects
  4. Opening a new issue
  5. Contributing
  6. Bounty program
  7. License

Overview

This repository is a csharp implementation of the neo blockchain. It is jointly maintained by the neo core developers and neo global development community. Visit the tutorials to get started.

Project structure

An overview of the project folders can be seen below.

Folder Content
/src/neo/Cryptography/ General cryptography implementation, including ECC.
/src/neo/IO/ Data structures used for caching and collection interaction.
/src/neo/Ledger/ Classes responsible for the state control, including the MemoryPool and Blockchain.
/src/neo/Network/ Peer-to-peer protocol implementation.
/src/neo/Persistence/ Classes used to allow other classes to access application state.
/src/neo/Plugins/ Interfaces used to extend Neo, including the storage interface.
/src/neo/SmartContract/ Native contracts, ApplicationEngine, InteropService and other smart-contract related classes.
/src/neo/Wallets/ Wallet and account implementation.
/src/Neo.Extensions/ Extensions to expand the existing functionality.
/src/Neo.Json/ Neo's JSON specification.
/tests/ All unit tests.

Code references are provided for all platform building blocks. That includes the base library, the VM, a command line application and the compiler.

  • neo: The core libraries for NEO.
  • neo-node: The node-cli implementation to start a NEO node, and Plugins(including DBFT, RpcServer, Oracle, ApplicationLogs, etc.).
  • neo-vm: The Neo Virtual Machine implementation.
  • neo-express: A private net optimized for development scenarios.
  • neo-devpack-dotnet: These are the official tools used to convert a C# smart-contract into a neo executable file.
  • neo-proposals: NEO Enhancement Proposals (NEPs) describe standards for the NEO platform, including core protocol specifications, client APIs, and contract standards.
  • neo-non-native-contracts: Includes non-native contracts that live on the blockchain, included but not limited to NeoNameService.

Opening a new issue

Please feel free to create new issues to suggest features or ask questions.

If you found a security issue, please refer to our security policy.

Contributing

We welcome contributions to the Neo project! To ensure a smooth collaboration process, please follow these guidelines:

Branch Rules

  • master - The NEO-4 development branch.
  • master-n3 - The NEO-3 development branch.

Pull Request Guidelines

Important: All pull requests must be based on the master or/and master-n3 branch.

  1. Fork the repository and create your feature branch from master or/and master-n3:

    git checkout master-n3 # or git checkout master
    git pull origin master-n3 # or git pull origin master
    git checkout -b feature/your-feature-name # or bugfix/your-bugfix-name
    
  2. Make your changes following the project's coding standards and conventions.

  3. Test your changes thoroughly to ensure they don't break existing functionality.

  4. Commit your changes with clear, descriptive commit messages:

    git commit -m "feature: add new feature description" # or bugfix: fix bug description
    
  5. Push to your fork and create a pull request against the master or/and master-n3 branch:

    git push origin feature/your-feature-name # or bugfix/your-bugfix-name
    
  6. Create a Pull Request targeting the master or/and master-n3 branch with:

    • Clear title and description
    • Reference to any related issues
    • Summary of changes made

Development Workflow

feature, bugfix, etc. → master or/and master-n3 → release-vX.Y
hotfix → release-vX.Y
  • Feature branches are merged into master or/and master-n3.
  • Create a release branch from master or/and master-n3 periodically.
  • Only hotfix branches are merged into release branches.

For more detailed contribution guidelines, please check our documentation or reach out to the maintainers.

Bounty program

You can be rewarded by finding security issues. Please refer to our bounty program page for more information.

License

The NEO project is licensed under the MIT license.

Product Compatible and additional computed target framework versions.
.NET net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (4)

Showing the top 4 NuGet packages that depend on Neo.Extensions:

Package Downloads
Neo

Package Description

Neo.IO

Package Description

R3E.Disassembler.CSharp

Disassembler for NEO smart contract.

Neo.Disassembler.CSharp

Disassembler for NEO smart contract.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
3.9.1 309 1/21/2026
3.9.0 139 1/18/2026
3.8.2 2,095 5/15/2025
3.8.1 1,348 5/8/2025
3.7.6 3,791 8/22/2024
3.7.5 1,644 6/12/2024
3.7.4 1,046 5/16/2024
3.7.1 1,100 5/10/2024