JetBrains.Annotations 2025.2.1

JetBrains ReSharper Annotations

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

Available on nuget.org as an ordinary compiled nuget package and a source-code only package.

official JetBrains project

Showing the top 20 packages that depend on JetBrains.Annotations.

Packages Downloads
Avalonia
Avalonia is a cross-platform UI framework for .NET providing a flexible styling system and supporting a wide range of Operating Systems such as Windows, Linux, MacOS and with experimental support for Android, iOS and WebAssembly.
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Avalonia
Avalonia is a WPF/UWP-inspired cross-platform XAML-based UI framework providing a flexible styling system and supporting a wide range of Operating Systems such as Windows (.NET Framework, .NET Core), Linux (via Xorg), MacOS and with experimental support for Android and iOS.
1

[Conditional("JETBRAINS_ANNOTATIONS")] attribute was removed from all annotation types, so the assembly reference to JetBrains.Annotation.dll is no longer automatically removed by the C# compiler. You can no longer safely use PrivateAssets="All" for package reference to JetBrains.Annotations. Consider migration to JetBrains.Annotations.Sources package if the dependency removal is important for you. • New JetBrains.Annotations.Sources package introduced as an alternative way to embed JetBrains.Annotations into your projects without package dependency. • Added DefaultEqualityUsageAttribute for equality members usage analysis. • MustDisposeResourceAttribute is now allowed on struct types. • Added the ability to specify the description for UsedImplicitlyAttribute (new 'Reason' property). • Added CqrsCommandAttribute, CqrsQueryAttribute, CqrsCommandHandlerAttribute, CqrsQueryHandlerAttribute and CqrsExcludeFromAnalysisAttribute to support CQRS analyzes of naming and adherence to the pattern. • Package icon update.

.NET Framework 2.0

  • No dependencies.

.NETPortable 4.0

  • No dependencies.

.NET Standard 1.0

.NET Standard 2.0

  • No dependencies.

Version Downloads Last updated
2025.2.4 1 03/04/2026
2025.2.2 1 03/04/2026
2025.2.1 1 03/04/2026
2025.2.0 1 03/04/2026
2025.1.0-eap1 1 03/04/2026
2024.3.0 1 03/04/2026
2024.3.0-eap1 1 03/04/2026
2024.2.0 1 03/04/2026
2024.2.0-eap1 1 03/04/2026
2023.3.0 1 03/04/2026
2023.3.0-eap4 1 03/04/2026
2023.3.0-eap3 1 03/04/2026
2023.2.0 1 03/04/2026
2023.2.0-eap3 1 03/04/2026
2023.2.0-eap2 1 03/04/2026
2023.2.0-eap1 1 03/04/2026
2022.3.1 1 03/04/2026
2022.1.0 1 03/04/2026
2022.1.0-eap3 1 03/04/2026
2022.1.0-eap2 1 03/04/2026
2021.3.0 1 03/04/2026
2021.3.0-eap5 1 03/04/2026
2021.3.0-eap4 1 03/04/2026
2021.3.0-eap3 1 03/04/2026
2021.2.0 1 03/04/2026
2021.2.0-eap3 1 03/04/2026
2021.2.0-eap2 1 03/04/2026
2021.1.0 1 03/04/2026
2021.1.0-eap01 1 03/04/2026
2020.3.0 1 03/04/2026
2020.1.0 1 03/04/2026
2019.1.3 1 03/04/2026
2019.1.2 1 03/04/2026
2019.1.1 1 03/04/2026
2018.3.0 1 03/04/2026
2018.2.1 1 03/04/2026
11.1.0 1 03/04/2026
11.0.0 1 03/04/2026
10.4.0 1 03/04/2026
10.3.0 1 03/04/2026
10.2.1 1 03/04/2026
10.2.0 1 03/04/2026
10.1.5 1 03/04/2026
10.1.4 1 03/04/2026
10.0.0 1 03/04/2026
9.2.0 1 03/04/2026
9.1.2 1 03/04/2026
9.1.1 1 03/04/2026
8.0.5 1 03/04/2026
8.0.4 1 03/04/2026
8.0.3 1 03/04/2026
7.0.0 1 03/04/2026
6.1.0 1 03/04/2026