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features:
- |
Added out-of-the-box support for the Datadog Tracer. This allows you to instrument pipeline and component
runs using Datadog and send traces to your preferred backend.
To use the Datadog Tracer you need to have the `ddtrace` package installed in your environment.
To instruct Haystack to use the Datadog tracer, you have multiple options:
* Run your Haystack application using the `ddtrace` command line tool as described in the
the [ddtrace documentation](https://ddtrace.readthedocs.io/en/stable/installation_quickstart.html#tracing).
This behavior can be disabled by setting the `HAYSTACK_AUTO_TRACE_ENABLED_ENV_VAR` environment variable to `false`.
* Configure the tracer manually in your code using the `ddtrace` package:
```python
from haystack.tracing import DatadogTracer
import haystack.tracing
import ddtrace
tracer = ddtrace.tracer
tracing.enable_tracing(DatadogTracer(tracer))
```
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