New Features
- ASM
- Support added for session fingerprints.
- LLM Observability
- When not using a provider integration (OpenAI, Anthropic, or Bedrock) with the LangChain integration, token metrics will be appended to the LLM Observability `llm` span.
- LLM Observability: When langchain's `chat_model.with_structured_output(..., method="json_mode")` is used, or `response_format={"type": "json_object"}` is passed into a langchain chat model invocation, the LLM Observability span will be an `llm` span instead of a `workflow` span.
- SSI
- Adds `requirements.json` to SSI artifact for bailing out on unsupported systems.
- Tracing
- Adds support for expanding AWS request/response Payloads into flattened span tags.
- Updates the service naming algorithm to infer the base service name when `DD_SERVICE` is not set, replacing instances of `'unnamed-python-service'`. Ensures that a more meaningful service name is used whenever possible, enhancing clarity in service identification.
Bug Fixes
- ASM
- The new user events policy is preventing users PII to be added by default as span tags. To allow customers using the Django auto instrumentation to still have those information, new environment variables have been added. In particular `DD_DJANGO_INCLUDE_EMAIL` (false by default), will tag user events with user email as before.
- Code Security/IAST
- Adds `umap`, `numba` and `pynndescent` to the Code Security denylist.
- Adds `googlecloudsdk` and `google auth` to the Code Security deny list.
- Resolves an issue where importing the `google.cloud.storage.batch` module would fail raising an ImportError
- Crashtracking
- Fixes an issue where the use of the Crashtracking component could result in zombie processes.
- Lib-Injection
- Supports Python 2.7+ for injection compatibility check.
- Adds more commands to the auto-injection denylist.
- Ensures we do not import the user installed `ddtrace` if it is present.
- Fixes injection guardrail check when `sys.argv` is not available.
- LLM Observability
- Resolves an issue where annotating spans with non-ASCII language input/output values resulted in encoded unicode being submitted.
- Profiling
- Fixes a data race where span information associated with a thread was read and updated concurrently, leading to segfaults
- Fixes an issue where cpu-time was not profiled for services using gunicorn, when `DD_PROFILING_STACK_V2_ENABLED` was set.
- Fixes an issue where enabling native exporter via `DD_PROFILING_EXPORT_LIBDD_ENABLED`, `DD_PROFILING_TIMELINE_ENABLED` or `DD_PROFILING_STACK_V2_ENABLED` turned off live heap profiling.
- The lock profiler would log a warning if it couldn't determine a name for a lock, and it would try determining a name multiple times for the same lock. This lead to excessive log spam. Downgrade this to a debug log and only try to determine the name once.
- Fixes an issue where the profiler was allocating too much memory from `ensure_binary_or_empty()` function, on Python versions before 3.12, with `DD_PROFILING_EXPORT_LIBDD_ENABLED` or `DD_PROFILING_TIMELINE_ENABLED`.
- Fixes an issue where the sample pool could deadlock after `fork()` by clearing it in the child process.
- When a Python thread finishes, this change frees memory used for mapping its thread id to `Span`. The mapping is populated and used when `DD_PROFILING_ENDPOINT_COLLECTION_ENABLED` and `DD_PROFILING_STACK_V2_ENABLED` were set to enable grouping of profiles for endpoints.
- Tracing
- Updates the inferred base service name algorithm to ensure that arguments following `--ddtrace` are no longer skipped when executing tests with pytest. Previously, the algorithm misinterpreted these arguments as standard flags, overlooking possible test paths that may contribute to the inferred service name.
- `botocore`: Resolves the issue where the span pointer for deserialized DynamoDB requests (through the resource-based API) were not being generated.
- `botocore`: Resolves an issue where our span pointer calculation code added recently logged unactionable messages.
- `pymongo`: add type checking to solve an issue where `NoneType` instead of expected `Pin` object would throw an error in `TracedTopology` method.
---