# Deprecation of Coralogix .NET SDK

**Published**: January 12, 2026

**Effective**: June 30, 2026

## Deprecation notice

As part of our continued investment in open standards and long-term observability best practices, Coralogix will deprecate the **Coralogix .NET SDK** on **June 30, 2026**.

The Coralogix .NET SDK is deprecated in favor of the **OpenTelemetry .NET SDK**, which is now the recommended and supported approach for collecting logs, metrics, and traces from .NET applications.

**Action is required** to ensure continued support and compatibility.

## Why this is happening

The observability ecosystem has converged on **OpenTelemetry** as the industry standard for telemetry collection. Maintaining a proprietary SDK alongside OpenTelemetry creates duplication and limits access to new capabilities.

By standardizing on OpenTelemetry, Coralogix can provide:

- A vendor-neutral, CNCF-backed standard
- Unified collection of logs, metrics, and traces
- Faster access to new ecosystem features and integrations
- Long-term stability and community-driven innovation
- Consistent configuration across languages and platforms

## What’s affected

The following Coralogix-maintained .NET SDKs are deprecated:

- `Coralogix.SDK` (for .NET Framework)
- `CoralogixCoreSDK` (for .NET Core)

These SDKs may currently be used in:

- .NET Framework or .NET Core applications
- Custom logging implementations using `CoralogixLogger`
- Applications configured with `CORALOGIX_LOG_URL`
- CI/CD pipelines or deployment scripts that install Coralogix NuGet packages

After the effective date, these SDKs will no longer be supported or maintained.

## What you need to do

### Migrate to OpenTelemetry for .NET

Replace the Coralogix .NET SDK with **OpenTelemetry .NET instrumentation**.

The OpenTelemetry .NET SDK is **stable** and fully supported by Coralogix for:

- Logs
- Metrics
- Traces

You can choose between:

- **Auto-instrumentation** (zero code changes)
- **Manual instrumentation** (full control and customization)

Follow the official guide here:\
[.NET OpenTelemetry Instrumentation](https://coralogix.com/docs/opentelemetry/instrumentation-options/dotnet-opentelemetry-instrumentation/index.md)

### Update endpoint configuration

OpenTelemetry uses Coralogix regional **[ingress endpoints](https://coralogix.com/docs/integrations/coralogix-endpoints/#ingress-endpoints)**:

```text
https://ingress.<CORALOGIX_REGION>.coralogix.com:443
```

### Update authentication

Replace legacy SDK authentication with OpenTelemetry headers:

- **New**: `Authorization: Bearer <your-api-key>`

Ensure all environment variables, containers, and scripts are updated accordingly.

## What will happen after June 30, 2026?

- The Coralogix .NET SDK will no longer be supported
- No bug fixes, updates, or security patches will be provided
- Compatibility with newer .NET versions is not guaranteed
- Support requests related to the deprecated SDK may be declined

Existing applications may continue to function, but migration is strongly recommended.

## Additional resources

- [.NET OpenTelemetry Instrumentation Guide](https://coralogix.com/docs/opentelemetry/instrumentation-options/dotnet-opentelemetry-instrumentation/index.md)
- [OpenTelemetry .NET Documentation](https://opentelemetry.io/docs/languages/dotnet/)
- [Coralogix Ingress Endpoints](https://coralogix.com/docs/integrations/coralogix-endpoints/#ingress-endpoints)

## Need help?

Our team is here to help you migrate smoothly.

Reach out via our **24/7 in-app support** or contact your **Technical Account Manager**, and we’ll guide you through the transition step by step.