NuGet.Versioning by: Microsoft

NuGet's implementation of Semantic Versioning.

Nullable by: Manuel Römer

A source code only package which allows you to use .NET's new nullable attributes in older target frameworks like .NET Standard 2.0 or the "old" .NET Framework. This package does not contain any compiled binaries, but instead adds the attribute classes as C# source code to your project. Because this code is compiled together with the rest of your code, the built binaries will not have a dependency on this package, meaning that you can perfectly use it for both libraries and applications. The C# code is only included if you are targeting a framework version which does not support the new nullable attributes. For example, if you create a library which multi-targets .NET Standard 2.0 and 2.1, the majority of the attributes are not included in the .NET Standard 2.1 version, because it already provides these by default. Please see https://github.com/manuelroemer/Nullable for additional information on how to use this package.

NUnit by: Charlie Poole, Rob Prouse

NUnit features a fluent assert syntax, parameterized, generic and theory tests and is user-extensible. This package includes the NUnit 4 framework assembly, which is referenced by your tests. You will need to install version 4 of the nunit-console program or a third-party runner that supports NUnit 4 in order to execute tests. Runners intended for use with NUnit 2.x or 3.x will not run NUnit 4 tests correctly. Supported platforms: - .NET Framework 4.6.2+ - .NET Standard 2.0+

OneOf by: Harry McIntyre

F# style discriminated unions for C#, using a custom type OneOf<T0, ... Tn> which holds a single value and has a .Match(...) method on it for exhaustive matching. Simple but powerful.

OpenFeature by: OpenFeature Authors

OpenFeature is an open standard for feature flag management, created to support a robust feature flag ecosystem using cloud native technologies. OpenFeature will provide a unified API and SDK, and a developer-first, cloud-native implementation, with extensibility for open source and commercial offerings.

OpenTelemetry by: OpenTelemetry Authors

OpenTelemetry .NET SDK

OpenTelemetry.Api by: OpenTelemetry Authors

OpenTelemetry .NET API

OpenTelemetry.Api.ProviderBuilderExtensions by: OpenTelemetry Authors

Contains extensions to register OpenTelemetry in applications using Microsoft.Extensions.DependencyInjection

OpenTelemetry.Exporter.Console by: OpenTelemetry Authors

Console exporter for OpenTelemetry .NET

OpenTelemetry.Exporter.OpenTelemetryProtocol by: OpenTelemetry authors

OpenTelemetry protocol exporter for OpenTelemetry .NET

OpenTelemetry.Extensions.Hosting by: OpenTelemetry Authors

Contains extensions to start OpenTelemetry in applications using Microsoft.Extensions.Hosting

OpenTelemetry.Instrumentation.AspNetCore by: OpenTelemetry Authors

ASP.NET Core instrumentation for OpenTelemetry .NET

OpenTelemetry.Instrumentation.Http by: OpenTelemetry Authors

Http instrumentation for OpenTelemetry .NET.

OpenTelemetry.Instrumentation.SqlClient by: OpenTelemetry authors

SqlClient instrumentation for OpenTelemetry .NET

OpenTelemetry.Instrumentation.StackExchangeRedis by: OpenTelemetry Authors

StackExchange.Redis instrumentation for OpenTelemetry .NET.

OpenTK by: Team OpenTK

The Open Toolkit is set of fast, low-level C# bindings for OpenGL, OpenGL ES, OpenAL and OpenCL. It runs on all major platforms and powers hundreds of apps, games and scientific research. It provides bindings for GLFW windowing, input and a game loop, and is the perfect start for your own game engine. OpenTK comes with simple and easy to follow tutorials for learning *modern* OpenGL. These are written by the community and represent all of the best practices to get you started. Learn how to use OpenTK here: https://opentk.net/learn/index.html Sample projects that accompany the tutorial can be found here: https://github.com/opentk/LearnOpenTK We have a very active discord server, if you need help, want to help, or are just curious, come join us! https://discord.gg/6HqD48s

OpenTK.redist.glfw by: Team OpenTK

GLFW redistributables for OpenTK.

OpenToolkit.Graphics by: Team OpenTK

The Open Toolkit is set of fast, low-level C# bindings for OpenGL, OpenGL ES and OpenAL. It runs on all major platforms and powers hundreds of apps, games and scientific research.

OrleansDashboard by: OrleansContrib

An admin dashboard for Microsoft Orleans

Otp.NET by: Kyle Spearrin

An implementation of TOTP and HOTP which are commonly used for multi factor authentication by using a shared key between the client and the server to generate and verify one time use codes. For documentation and examples visit the project website on GitHub at https://github.com/kspearrin/Otp.NET