What's Changed
- fix(mcp): fall back to HTTP headers for server-side trace context when
params._metais absent (#829) - fix(mcp-instrumentation): always inject W3C trace context into outbound HTTP request headers so MCP servers that read context only from HTTP (API Gateways, service meshes, non-Python MCP servers) can join the caller's trace, even with
OTEL_MCP_SUPPRESS_HTTP_INSTRUMENTATIONenabled (#827) - Nightly dependency update: OpenTelemetry 1.44.0/0.65b0 (#799)
- feat(genai): capture user input and agent output on llama_index invoke_agent spans (#824)
- fix(crewai): use native per-call token usage when crewai provides it (#822)
- fix(crewai): normalize tool description across crewai versions (#821)
- fix(serviceevents): key the incident-snapshot dedup hash on operation + bounded throw-site origin (
module/path.function) (#825) - fix(crewai): report per-call LLM token usage instead of cumulative total (#806)
- fix(genai): serialize tool call arguments/results and blob bytes to match OTel util-genai (primitives kept native, bytes base64-encoded) (#817)
- feat(genai): capture user input and agent output on invoke_agent spans (#815)
- refactor(serviceevents): make the endpoint span processor framework-agnostic
- fix(serviceevents): gate incident trace correlation on the SAMPLED flag and harden incident dedup/rate-limiting
- fix(genai): serialize list-valued message content into typed parts so multimodal/reasoning content is no longer stringified to a Python repr in
gen_ai.input/output.messagesacross langchain, llama_index, and crewai (#805) - feat: add OTel lite SDK for Lambda cold start optimization (#789)
Upstream Components
opentelemetry-api- 1.44.0opentelemetry-sdk- 1.44.0opentelemetry-exporter-otlp-proto-grpc- 1.44.0opentelemetry-exporter-otlp-proto-http- 1.44.0opentelemetry-propagator-b3- 1.44.0opentelemetry-propagator-jaeger- 1.44.0opentelemetry-exporter-otlp-proto-common- 1.44.0opentelemetry-sdk-extension-aws- 2.1.0opentelemetry-propagator-aws-xray- 1.0.2opentelemetry-distro- 0.65b0opentelemetry-processor-baggage- 0.65b0opentelemetry-propagator-ot-trace- 0.65b0opentelemetry-instrumentation- 0.65b0opentelemetry-instrumentation-aws-lambda- 0.65b0opentelemetry-instrumentation-aio-pika- 0.65b0opentelemetry-instrumentation-aiohttp-client- 0.65b0opentelemetry-instrumentation-aiokafka- 0.65b0opentelemetry-instrumentation-aiopg- 0.65b0opentelemetry-instrumentation-asgi- 0.65b0opentelemetry-instrumentation-asyncpg- 0.65b0opentelemetry-instrumentation-boto3sqs- 0.65b0opentelemetry-instrumentation-botocore- 0.65b0opentelemetry-instrumentation-celery- 0.65b0opentelemetry-instrumentation-confluent-kafka- 0.65b0opentelemetry-instrumentation-dbapi- 0.65b0opentelemetry-instrumentation-django- 0.65b0opentelemetry-instrumentation-falcon- 0.65b0opentelemetry-instrumentation-fastapi- 0.65b0opentelemetry-instrumentation-flask- 0.65b0opentelemetry-instrumentation-grpc- 0.65b0opentelemetry-instrumentation-httpx- 0.65b0opentelemetry-instrumentation-jinja2- 0.65b0opentelemetry-instrumentation-kafka-python- 0.65b0opentelemetry-instrumentation-logging- 0.65b0opentelemetry-instrumentation-mysql- 0.65b0opentelemetry-instrumentation-mysqlclient- 0.65b0opentelemetry-instrumentation-pika- 0.65b0opentelemetry-instrumentation-psycopg2- 0.65b0opentelemetry-instrumentation-pymemcache- 0.65b0opentelemetry-instrumentation-pymongo- 0.65b0opentelemetry-instrumentation-pymysql- 0.65b0opentelemetry-instrumentation-pyramid- 0.65b0opentelemetry-instrumentation-redis- 0.65b0opentelemetry-instrumentation-remoulade- 0.65b0opentelemetry-instrumentation-requests- 0.65b0opentelemetry-instrumentation-sqlalchemy- 0.65b0opentelemetry-instrumentation-sqlite3- 0.65b0opentelemetry-instrumentation-starlette- 0.65b0opentelemetry-instrumentation-system-metrics- 0.65b0opentelemetry-instrumentation-threading- 0.65b0opentelemetry-instrumentation-tornado- 0.65b0opentelemetry-instrumentation-tortoiseorm- 0.65b0opentelemetry-instrumentation-urllib- 0.65b0opentelemetry-instrumentation-urllib3- 0.65b0opentelemetry-instrumentation-wsgi- 0.65b0opentelemetry-instrumentation-cassandra- 0.65b0opentelemetry-instrumentation-openai-agents-v2- 0.1.0cachetools- 6.2.4urllib3 >= 2.7.0; python_version >= '3.10'protobuf- 6.33.5pyyaml- 6.0.3python-dateutil >= 2.7.0bytecode; python_version >= '3.10' and python_version < '3.12'
Release Artifacts
This release publishes to public ECR and PyPi.
- See ADOT Python auto-instrumentation Docker image v0.19.0 in our public ECR repository:
https://gallery.ecr.aws/aws-observability/adot-autoinstrumentation-python - See version 0.19.0 in our PyPi repository:
https://pypi.org/project/aws-opentelemetry-distro/
Lambda Layer
This release includes the AWS OpenTelemetry Lambda Layer for Python version 0.19.0-821465a.
Lambda Layer ARNs:
| Region | Layer ARN |
|---|---|
| af-south-1 | arn:aws:lambda:af-south-1:904233096616:layer:AWSOpenTelemetryDistroPython:24 |
| ap-east-1 | arn:aws:lambda:ap-east-1:888577020596:layer:AWSOpenTelemetryDistroPython:24 |
| ap-east-2 | arn:aws:lambda:ap-east-2:412664885777:layer:AWSOpenTelemetryDistroPython:5 |
| ap-northeast-1 | arn:aws:lambda:ap-northeast-1:615299751070:layer:AWSOpenTelemetryDistroPython:27 |
| ap-northeast-2 | arn:aws:lambda:ap-northeast-2:615299751070:layer:AWSOpenTelemetryDistroPython:27 |
| ap-northeast-3 | arn:aws:lambda:ap-northeast-3:615299751070:layer:AWSOpenTelemetryDistroPython:27 |
| ap-south-1 | arn:aws:lambda:ap-south-1:615299751070:layer:AWSOpenTelemetryDistroPython:27 |
| ap-south-2 | arn:aws:lambda:ap-south-2:796973505492:layer:AWSOpenTelemetryDistroPython:24 |
| ap-southeast-1 | arn:aws:lambda:ap-southeast-1:615299751070:layer:AWSOpenTelemetryDistroPython:26 |
| ap-southeast-2 | arn:aws:lambda:ap-southeast-2:615299751070:layer:AWSOpenTelemetryDistroPython:27 |
| ap-southeast-3 | arn:aws:lambda:ap-southeast-3:039612877180:layer:AWSOpenTelemetryDistroPython:24 |
| ap-southeast-4 | arn:aws:lambda:ap-southeast-4:713881805771:layer:AWSOpenTelemetryDistroPython:24 |
| ap-southeast-5 | arn:aws:lambda:ap-southeast-5:152034782359:layer:AWSOpenTelemetryDistroPython:15 |
| ap-southeast-6 | arn:aws:lambda:ap-southeast-6:313828097273:layer:AWSOpenTelemetryDistroPython:4 |
| ap-southeast-7 | arn:aws:lambda:ap-southeast-7:980416031188:layer:AWSOpenTelemetryDistroPython:15 |
| ca-central-1 | arn:aws:lambda:ca-central-1:615299751070:layer:AWSOpenTelemetryDistroPython:27 |
| ca-west-1 | arn:aws:lambda:ca-west-1:595944127152:layer:AWSOpenTelemetryDistroPython:15 |
| cn-north-1 | arn:aws-cn:lambda:cn-north-1:440179912924:layer:AWSOpenTelemetryDistroPython:15 |
| cn-northwest-1 | arn:aws-cn:lambda:cn-northwest-1:440180067931:layer:AWSOpenTelemetryDistroPython:15 |
| eu-central-1 | arn:aws:lambda:eu-central-1:615299751070:layer:AWSOpenTelemetryDistroPython:27 |
| eu-central-2 | arn:aws:lambda:eu-central-2:156041407956:layer:AWSOpenTelemetryDistroPython:24 |
| eu-north-1 | arn:aws:lambda:eu-north-1:615299751070:layer:AWSOpenTelemetryDistroPython:27 |
| eu-south-1 | arn:aws:lambda:eu-south-1:257394471194:layer:AWSOpenTelemetryDistroPython:24 |
| eu-south-2 | arn:aws:lambda:eu-south-2:490004653786:layer:AWSOpenTelemetryDistroPython:24 |
| eu-west-1 | arn:aws:lambda:eu-west-1:615299751070:layer:AWSOpenTelemetryDistroPython:27 |
| eu-west-2 | arn:aws:lambda:eu-west-2:615299751070:layer:AWSOpenTelemetryDistroPython:27 |
| eu-west-3 | arn:aws:lambda:eu-west-3:615299751070:layer:AWSOpenTelemetryDistroPython:27 |
| il-central-1 | arn:aws:lambda:il-central-1:746669239226:layer:AWSOpenTelemetryDistroPython:24 |
| me-central-1 | arn:aws:lambda:me-central-1:739275441131:layer:AWSOpenTelemetryDistroPython:23 |
| mx-central-1 | arn:aws:lambda:mx-central-1:610118373846:layer:AWSOpenTelemetryDistroPython:15 |
| sa-east-1 | arn:aws:lambda:sa-east-1:615299751070:layer:AWSOpenTelemetryDistroPython:27 |
| us-east-1 | arn:aws:lambda:us-east-1:615299751070:layer:AWSOpenTelemetryDistroPython:30 |
| us-east-2 | arn:aws:lambda:us-east-2:615299751070:layer:AWSOpenTelemetryDistroPython:27 |
| us-west-1 | arn:aws:lambda:us-west-1:615299751070:layer:AWSOpenTelemetryDistroPython:34 |
| us-west-2 | arn:aws:lambda:us-west-2:615299751070:layer:AWSOpenTelemetryDistroPython:34 |