Ddtrace

Bug Fixes

- opentelemetry: Resolves circular imports raised by the OpenTelemetry API when the `ddcontextvars_context` entrypoint is loaded. This resolves an incompatibility introduced in `opentelemetry-api==1.25.0`.
- opentelemetry: Resolves an issue where the `get_tracer` function would raise a `TypeError` when called with the `attribute` argument. This resolves an incompatibility introduced in `opentelemetry-api==1.26.0`.
- opentelemetry: Resolves an edge case where distributed tracing headers could be generated before a sampling decision is made, resulting in dropped spans in downstream services.


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Bug Fixes

- ASM: This fix resolves an issue where an org could not customize actions through remote config.
- Code Security: add the boto package to the IAST patching denylist.
- CI Visibility: Fixes an issue where the pytest plugin would crash if the git binary was absent
- CI Visibility: fixes source file information that would be incorrect in certain decorated / wrapped scenarios and forces paths to be relative to the repository root, if present.
- CI Visibility: fixes that traces were not properly being sent in agentless mode, and were otherwise not properly attached to the test that started them
- openai: This fix resolves an issue where specifying `None` for streamed chat completions resulted in a `TypeError`.
- openai: This fix removes patching for the edits and fine tunes endpoints, which have been removed from the OpenAI API.
- openai: This fix resolves an issue where streamed OpenAI responses raised errors when being used as context managers.
- profiling: Fixes an issue where task information coming from echion was encoded improperly, which could segfault the application.
- tracing: fixes a potential crash where using partial flushes and `tracer.configure()` could result in an IndexError
- tracing: Fixes an issue where `DD_TRACE_SPAN_TRACEBACK_MAX_SIZE` was not applied to exception tracebacks.
- tracing: This fix resolves an issue where importing `asyncio` after a trace has already been started will reset the currently active span.
- flask: Fix scenarios when using flask-like frameworks would cause a crash because of patching issues on startup.
- profiling: captures lock usages with `with` context managers, e.g. `with lock:`
- profiling: propagates `runtime_id` tag to libdatadog exporter. It is a unique string identifier for the profiled process. For example, Thread Timeline visualization uses it to distinguish different processes.

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Known Issues

- Code Security: Security tracing for the `builtins.open` function is experimental and may not be stable. This aspect is not replaced by default.
- grpc: Tracing for the `grpc.aio` clients and servers is experimental and may not be stable. This integration is now disabled by default.

Bug Fixes

- fix(grpc): This fix a bug in the grpc.aio support specific to streaming responses.
- RemoteConfig: This fix resolves an issue where remote config did not work for the tracer when using an agent that would add a flare item to the remote config payload. With this fix, the tracer will now correctly pull out the lib_config we need from the payload in order to implement remote config changes properly.


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Bug Fixes

- telemetry: This fix resolves an issue when using `pytest` + `gevent` where the telemetry writer was eager initialized by `pytest` entrypoints loading of our plugin causing a potential dead lock.


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Bug Fixes

- Code Security: This fix solves an issue with fstrings where formatting was not applied to int parameters
- logging: This fix resolves an issue where `tracer.get_log_correlation_context()` incorrectly returned a 128-bit trace_id even with `DD_TRACE_128_BIT_TRACEID_LOGGING_ENABLED` set to `False` (the default), breaking log correlation. It now returns a 64-bit trace_id.
- profiling: Fixes a defect where the deprecated path to the Datadog span type was used by the profiler.


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Bug Fixes

- tracing: This fix resolves an issue where sampling rules were not matching correctly on float values that had a 0 decimal value. Sampling rules now evaluate such values as integers.

- langchain: This fix resolves an issue where the LangChain integration always attempted to patch LangChain partner
libraries, even if they were not available.

- langchain: This fix resolves an issue where tracing `Chain.invoke()` instead of `Chain.__call__()` resulted in the an `ArgumentError` due to an argument name change for inputs between the two methods.

- langchain: This fix adds error handling for checking if a traced LLM or chat model is an OpenAI instance, as the langchain_community package does not allow automatic submodule importing.

- internal: This fix resolves an error regarding the remote config module with payloads missing a `lib_config` entry

- profiling: fix a bug that caused the HTTP exporter to crash when attempting to serialize tags.

- grpc: Resolves segfaults raised when grpc.aio interceptors are registered

- Code Security: Ensure that when tainting the headers of a Flask application, iterating over the headers (i.e., with <span class="title-ref">headers.items()</span>) does not duplicate them.


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