JetBrains.Annotations 2022.3.1

The ID prefix of this package has been reserved for one of the owners of this package by Prefix Reserved
.NET Standard 1.0 .NET Framework 2.0
There is a newer prerelease version of this package available.
See the version list below for details.
dotnet add package JetBrains.Annotations --version 2022.3.1
NuGet\Install-Package JetBrains.Annotations -Version 2022.3.1
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="JetBrains.Annotations" Version="2022.3.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add JetBrains.Annotations --version 2022.3.1
#r "nuget: JetBrains.Annotations, 2022.3.1"
#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.
// Install JetBrains.Annotations as a Cake Addin
#addin nuget:?package=JetBrains.Annotations&version=2022.3.1

// Install JetBrains.Annotations as a Cake Tool
#tool nuget:?package=JetBrains.Annotations&version=2022.3.1

JetBrains.Annotations help reduce false positive warnings, explicitly declare purity and nullability in your code, deal with implicit usages of members, support special semantics of APIs in ASP.NET and XAML frameworks and otherwise increase accuracy of JetBrains Rider and ReSharper code inspections.

All usages of JetBrains.Annotations attributes are erased from metadata by default, which means no actual binary reference to 'JetBrains.Annotations.dll' assembly is produced. If you need to preserve these attributes in metadata, just define 'JETBRAINS_ANNOTATIONS' conditional compilation symbol in your projects.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed. 
.NET Core netcoreapp1.0 was computed.  netcoreapp1.1 was computed.  netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard1.0 is compatible.  netstandard1.1 was computed.  netstandard1.2 was computed.  netstandard1.3 was computed.  netstandard1.4 was computed.  netstandard1.5 was computed.  netstandard1.6 was computed.  netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net20 is compatible.  net35 was computed.  net40 was computed.  net403 was computed.  net45 was computed.  net451 was computed.  net452 was computed.  net46 was computed.  net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen30 was computed.  tizen40 was computed.  tizen60 was computed. 
Universal Windows Platform uap was computed.  uap10.0 was computed. 
Windows Phone wp8 was computed.  wp81 was computed.  wpa81 was computed. 
Windows Store netcore was computed.  netcore45 was computed.  netcore451 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.
  • .NETFramework 2.0

    • No dependencies.
  • .NETStandard 1.0

  • .NETStandard 2.0

    • No dependencies.
  • Portable Class Library (.NETFramework 4.0, Silverlight 5.0, Windows 8.0, WindowsPhone 8.0, WindowsPhoneApp 8.1)

    • No dependencies.

NuGet packages (2.3K)

Showing the top 5 NuGet packages that depend on JetBrains.Annotations:

Package Downloads
Volo.Abp.Core The ID prefix of this package has been reserved for one of the owners of this package by

Package Description

Abp The ID prefix of this package has been reserved for one of the owners of this package by



A simple package by @ardalis and @nimblepros with guard clause helper methods. See docs for how to extend using your own extension methods defined in your project.


Package Description


Library for easily paging through any IEnumerable/IQueryable in .NET and .NET Core

GitHub repositories (193)

Showing the top 5 popular GitHub repositories that depend on JetBrains.Annotations:

Repository Stars
Launcher for Windows, an alternative to Alfred and Launchy.
ASP.NET Boilerplate - Web Application Framework
Open Source Web Application Framework for ASP.NET Core. Offers an opinionated architecture to build enterprise software solutions with best practices on top of the .NET and the ASP.NET Core platforms. Provides the fundamental infrastructure, production-ready startup templates, application modules, UI themes, tooling, guides and documentation.
C# application with primary purpose of farming Steam cards from multiple accounts simultaneously.
Simple REST and HTTP API Client for .NET
Version Downloads Last updated
2023.2.0-eap3 3,058 5/11/2023
2023.2.0-eap2 19,763 4/18/2023
2023.2.0-eap1 48,463 3/8/2023
2022.3.1 4,272,325 11/7/2022
2022.1.0 16,486,580 4/18/2022
2022.1.0-eap3 216,738 2/1/2022
2022.1.0-eap2 4,179 1/18/2022
2021.3.0 15,600,361 10/28/2021
2021.3.0-eap5 686 10/26/2021
2021.3.0-eap4 14,189 10/2/2021
2021.3.0-eap3 7,413 8/2/2021
2021.2.0 13,007,442 7/21/2021
2021.2.0-eap3 32,411 6/28/2021
2021.2.0-eap2 10,288 5/26/2021
2021.1.0 6,745,957 4/6/2021
2021.1.0-eap01 29,237 2/9/2021
2020.3.0 11,304,334 11/27/2020
2020.1.0 18,517,741 4/7/2020
2019.1.3 24,475,096 7/3/2019
2019.1.2 1,049 7/3/2019
2019.1.1 4,870,987 3/26/2019
2018.3.0 3,497,587 1/14/2019
2018.2.1 6,494,610 7/25/2018
11.1.0 13,193,730 10/24/2017
11.0.0 2,758,459 7/20/2017
10.4.0 2,528,594 3/9/2017
10.3.0 2,186,691 2/28/2017
10.2.1 2,192,481 10/11/2016
10.2.0 43,130 10/8/2016
10.1.5 530,558 6/30/2016
10.1.4 288,599 4/10/2016
10.0.0 741,259 10/30/2015
9.2.0 402,106 8/11/2015
9.1.2 3,126 8/11/2015
9.1.1 336,454 3/20/2015
8.0.5 278,075 12/17/2014
8.0.4 13,772 11/30/2014
8.0.3 12,927 11/30/2014
7.0.0 259,418 9/12/2012
6.1.0 79,880 11/23/2011

• Additional constructor for [LanguageInjection]
• Added AspMinimalApiGroupAttribute for ASP.NET Minimal API endpoints groups support