Bump ddtrace from 4.6.1 to 4.6.3

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Bumps ddtrace from 4.6.1 to 4.6.3.

Release notes

Sourced from ddtrace's releases.

4.6.3

Estimated end-of-life date, accurate to within three months: 05-2027 See the support level definitions for more information.

Bug Fixes

• LLM Observability: Fixes an issue where the payload size limit and event size limit were hardcoded and could not be configured. These are now configurable via the DD_LLMOBS_PAYLOAD_SIZE_BYTES and DD_LLMOBS_EVENT_SIZE_BYTES environment variables respectively. These default to 5242880 (5 MiB) and 5000000 (5 MB), matching the previous hardcoded values.

• LLM Observability: Fixes an issue where the @llm decorator did not automatically annotate the return value as output in traces. The decorator now captures the return value and annotates it as output, consistent with @workflow and @task decorators. Manual annotations via LLMObs.annotate() still take precedence.

• LLM Observability: Fixes an issue where Pydantic model outputs nested inside lists, tuples, or dicts were serialized as unreadable repr() strings instead of JSON. Pydantic v1 and v2 models are now properly serialized using model_dump() or .dict() respectively.

4.6.2

Estimated end-of-life date, accurate to within three months: 05-2027 See the support level definitions for more information.

Bug Fixes

• CI Visibility: Fix an unhandled RuntimeError that occurred when the git binary was not available. Git metadata upload is now skipped gracefully with a warning instead of aborting pytest startup.

• Fixed an issue with internal periodic threads that could have caused a crash during shutdown if a fork occurred.

• LLM Observability: Fixes an issue where SDK-side LLMObs spans (e.g. LLMObs.workflow()) and OTel-bridged spans (e.g. from Strands Agents with DD_TRACE_OTEL_ENABLED=1) produced separate LLMObs traces instead of a single unified trace.

Commits

• 0e3eeb7 chore: bump version in 4.6 branch to 4.6.3 (#17087)
• 8ab6ebd fix(llmobs): make EVP proxy payload and event size limits configurable [backp...
• 0e2438e fix(llmobs): auto-annotate output for @​llm decorator [backport 4.6] (#17067)
• 8c798ed fix(llmobs): serialize Pydantic model outputs as JSON instead of repr() [back...
• 893dec4 chore: bump version in 4.6 branch to 4.6.2 (#17075)
• f309832 fix(llmobs): write llmobs_trace_id to local root span meta for backend proces...
• d5e2815 fix: periodic thread after fork cleanup [backport 4.6] (#17039)
• 12b1348 fix(ci_visibility): handle runtime error if git binary is missing [backport #...
• See full diff in compare view

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