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docs: add 4.0 upgrade section #15343

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add 4.0 upgrade section
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18 changes: 17 additions & 1 deletion docs/upgrading.rst
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Expand Up @@ -95,4 +95,20 @@ Use the following patterns to identify the deprecated environment variables in a
Legacy tracing interfaces
^^^^^^^^^^^^^^^^^^^^^^^^^

Reference the [3.0 release note](https://github.com/DataDog/dd-trace-py/releases/tag/v3.0.0) to identify and update deprecated interfaces in ddtrace products.
Reference the [3.0 release note](https://github.com/DataDog/dd-trace-py/releases/tag/v3.0.0) to identify and update deprecated interfaces in ddtrace products.


Upgrade to 4.0
**************

Environment variables
^^^^^^^^^^^^^^^^^^^^^

Use the following patterns to identify the deprecated environment variables in a code base. These configurations will not be supported in v3.0. Refer to the migration guide below for next steps::

git grep -P -e "DD_DYNAMIC_INSTRUMENTATION_UPLOAD_FLUSH_INTERVAL" \
-e "DD_EXCEPTION_DEBUGGING_ENABLED" \
-e "DD_PROFILING_STACK_V2_ENABLED" \
-e "DEFAULT_RUNTIME_METRICS_INTERVAL"

Reference the [4.0 release note](https://github.com/DataDog/dd-trace-py/releases/tag/v4.0.0) to identify and update deprecated interfaces in ddtrace products.
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