C5 3.0.0-rc

.NET 6.0 .NET Standard 2.0
This is a prerelease version of C5.
Install-Package C5 -Version 3.0.0-rc
dotnet add package C5 --version 3.0.0-rc
<PackageReference Include="C5" Version="3.0.0-rc" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add C5 --version 3.0.0-rc
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: C5, 3.0.0-rc"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install C5 as a Cake Addin
#addin nuget:?package=C5&version=3.0.0-rc&prerelease

// Install C5 as a Cake Tool
#tool nuget:?package=C5&version=3.0.0-rc&prerelease
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

The C5 Generic Collection Library for C# and CLI is a comprehensive collection library supporting lists, sets, bags, dictionaries, priority queues, (FIFO) queues, and (LIFO) stacks. C5 runs on everything supporting .NET Standard 2.0: .NET Core 2.0+, .NET 4.6.1+, Mono, Xamarin, Universal Windows Platform, and Unity.

Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows
.NET Core netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard2.0 netstandard2.1
.NET Framework net461 net462 net463 net47 net471 net472 net48
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen40 tizen60
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.
  • .NETStandard 2.0

    • No dependencies.
  • net6.0

    • No dependencies.

NuGet packages (46)

Showing the top 5 NuGet packages that depend on C5:

Package Downloads

Streaming Percentile Estimation


This package provides support for sending metrics, histograms and opentracing spans to Wavefront via proxy or direct ingestion.


Gridsum.DataflowEx is a dataflow and etl framework redesigned on top of Microsoft TPL Dataflow library with Object-Oriented Programming in mind. DataflowEx enables you to write reusable components and easily link them together as a high-level dataflow graph while still having the power of low-level blocks from TPL Dataflow. Other cool features include: Dataflow lifecycle management, built-in dataflow health monitor, cyclic graph auto completion support, sql bulk insertion support, etc. More information is available at: https://github.com/gridsum/dataflowex


Framework for building actors networks


Framework for building actors networks

GitHub repositories (15)

Showing the top 5 popular GitHub repositories that depend on C5:

Repository Stars
Project is DEAD, Discord server: https://discord.me/Catchem
An automated Pokémon Go Bot
recommender system library for the CLR (.NET)
An open source CMS, Relationship Management System (RMS) and Church Management System (ChMS) all rolled into one.
Platform for Situated Intelligence
Version Downloads Last updated
3.0.0-rc 3,181 12/22/2021
3.0.0-beta 35,051 2/19/2019
2.5.3 1,821,937 7/24/2017
2.5.0 17,669 7/7/2017
2.4.5947.17249 140,142 4/13/2016
2.4.5828.26833 10,495 12/16/2015
2.4.5827.29151 1,500 12/15/2015 319,402 6/16/2014
2.3.0 3,977 6/10/2014
2.2.5073.27396 109,515 11/21/2013
2.2.4881.16939 10,844 5/13/2013
2.2.4822.42600 33,795 3/15/2013
2.1.4492.18142 27,271 4/19/2012
2.0.4398.25000 2,231 2/18/2012
2.0.4398.23817 2,797 1/16/2012
2.0.4398.21073 2,360 1/16/2012
2.0.1 2,117 11/17/2011
2.0.0 3,700 5/21/2011
1.0.2 51,773 5/11/2011

C5 3.0 of 2021-12-22:
       - C5 now targets .NET Standard 2.0 and .NET 6.0.
       - Documentation is autogenerated on build and published to <https://c5.azurewebsites.net/>.
       - Strong name removed.
       - Memory safe optimizer removed as they are no longer needed for Unity development.
       - `Rec<T1, T2, ...>` type removed as was an exact copy of `ValueTuple<T1, T2, ...>`.
       - Breaking change: All `public readonly` are now properties.
       - Breaking change: `EventTypeEnum` is now `EventType`.
       - Breaking change: custom `KeyValuePair<K, V>` has been replaced by the standard `System.Collections.Generic.KeyValue<TKey, TValue>` for better compatability.
       - Deprecation warning: As per [BinaryFormatter security guide](https://docs.microsoft.com/en-us/dotnet/standard/serialization/binaryformatter-security-guide), binary deserialization present high security risk. For this reason the `[Serializable]` attribute will be removed from the entire library in the next release.