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OpenTelemetry .NET

Slack Nuget NuGet Build

The .NET OpenTelemetry client.

Supported .NET Versions

Packages shipped from this repository generally support all the officially supported versions of .NET and .NET Framework (an older Windows-based .NET implementation), except .NET Framework 3.5. Any exceptions to this are noted in the individual files.

Project Status

Signal Status
Logs Stable*
Metrics Stable
Traces Stable

*While the OpenTelemetryLoggerProvider (i.e integration with ILogger) is stable, the OTLP Exporter for Logs is still non-stable.

See Spec Compliance Matrix to understand which portions of the specification has been implemented in this repo.

Getting Started

If you are new here, please read the getting started docs:

This repository includes multiple installable components, available on NuGet. Each component has its individual file, which covers the instruction on how to install and how to get started. To find all the available components, please take a look at the src folder.

Here are the most commonly used components:

Here are the instrumentation libraries:

Here are the exporter libraries:

See the OpenTelemetry registry and OpenTelemetry .NET Contrib repo for more components.


OpenTelemetry .NET is designed to be extensible. Here are the most common extension scenarios:



We meet weekly on Tuesdays, and the time of the meeting alternates between 11AM PT and 4PM PT. The meeting is subject to change depending on contributors' availability. Check the OpenTelemetry community calendar for specific dates and for Zoom meeting links.

Meeting notes are available as a public Google doc. If you have trouble accessing the doc, please get in touch on Slack.

Maintainers (@open-telemetry/dotnet-maintainers):

Approvers (@open-telemetry/dotnet-approvers):

Emeritus Maintainer/Approver/Triager:

Thanks to all the people who have contributed


Release Schedule

Only the core components of the repo have released a stable version. Components which are marked pre-release, are still work in progress and can undergo many breaking changes before stable release.

See the release notes for existing releases.

See the project milestones for details on upcoming releases. The dates and features described in issues and milestones are estimates, and subject to change.

Daily builds from this repo are published to MyGet, and can be installed from this source.

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