Version 1.42.0/0.63b0

[github-actions[bot]]

Added

• opentelemetry-api, opentelemetry-sdk: add support for 'random-trace-id' flags in W3C traceparent header trace flags. Implementations of IdGenerator that do randomly generate the 56 least significant bits, should also implement a is_trace_id_random methods that returns True. (#4854)
• logs: add exception support to Logger emit and LogRecord attributes (#4908)
• opentelemetry-exporter-otlp-proto-grpc: make retryable gRPC error codes configurable for gRPC exporters (#4917)
• opentelemetry-sdk: Add create_logger_provider/configure_logger_provider to declarative file configuration, enabling LoggerProvider instantiation from config files without reading env vars (#4990)
• opentelemetry-exporter-otlp-json-common: add 'opentelemetry-exporter-otlp-json-common' package for OTLP JSON exporters (#4996)
• opentelemetry-sdk: Add service resource detector support to declarative file configuration via detection_development.detectors[].service (#5003)
• opentelemetry-docker-tests: add docker-tests coverage of opentelemetry-exporter-otlp-proto-grpc and opentelemetry-exporter-otlp-proto-http metrics export (#5030)
• Add registry keyword argument to PrometheusMetricReader to allow passing a custom Prometheus registry (#5055)
• Add WeaverLiveCheck test util (#5088)
• opentelemetry-sdk: add load_entry_point shared utility to declarative file configuration for loading plugins via entry points; refactor propagator loading to use it (#5093)
• opentelemetry-sdk: add sampler plugin loading to declarative file configuration via the opentelemetry_sampler entry point group, matching the spec's PluginComponentProvider mechanism (#5095)
• opentelemetry-sdk: add propagator plugin loading to declarative file configuration via the opentelemetry_propagator entry point group, matching the spec's PluginComponentProvider mechanism (#5098)
• opentelemetry-sdk: add exporter plugin loading to declarative file configuration for all three signals (traces, metrics, logs) via the opentelemetry_*_exporter entry point groups, matching the spec's PluginComponentProvider mechanism (#5128)
• opentelemetry-sdk: add generic resource detector plugin loading to declarative file configuration via the opentelemetry_resource_detector entry point group, matching the spec's PluginComponentProvider mechanism (#5129)
• opentelemetry-sdk: add additional_properties support to generated config models via custom datamodel-codegen template, enabling plugin/custom component names to flow through typed dataclasses (#5131)
• Add ability to selectively enable exporting of SDK internal metrics with the OTEL_PYTHON_SDK_INTERNAL_METRICS_ENABLED environment variable. (#5151)

Changed

• opentelemetry-semantic-conventions: use X | Y union annotation (#5096)
• opentelemetry-api: update EnvironmentGetter and EnvironmentSetter to use normalized environment variable names (#5119)
• Apply fixes for UP ruff rule (#5133)
• opentelemetry-sdk: only load entrypoints for resource detectors if they are configured via OTEL_EXPERIMENTAL_RESOURCE_DETECTORS (#5145)
• ci: wait for tracecontext server readiness instead of a fixed sleep in scripts/tracecontext-integration-test.sh (#5149)
• Switch to SPDX license headers and add CI enforcement (#5177)
• opentelemetry-semantic-conventions: Bump semantic conventions to 1.41.1, this changes the metrics name of K8S_CONTAINER_CPU_LIMIT_UTILIZATION and K8S_CONTAINER_CPU_REQUEST_UTILIZATION. (#5200)

Removed

• opentelemetry-api: remove third-party importlib-metadata in favor of standard library since Python >= 3.10 is now required (#3234)
• Drop Python 3.9 support (#5076)

Fixed

• opentelemetry-sdk: Allow declarative OTLP HTTP exporters to map compression: deflate instead of rejecting it as unsupported. (#5075)
• Fix incorrect code example in create_tracer() docstring (#5077)
• opentelemetry-sdk: Fix ProcessResourceDetector to use sys.orig_argv so that process.command, process.command_line, and process.command_args reflect the original invocation for python -m <module> runs (where sys.argv[0] is rewritten to the module path) (#5083)
• opentelemetry-sdk: fix YAML structure injection via environment variable substitution in declarative file configuration; values containing newlines are now emitted as quoted YAML scalars per spec requirement (#5091)
• opentelemetry-sdk: Fix mutable attributes reference in metrics, attributes passed to instrument add/record are now copied so that subsequent mutations do not affect recorded data points (#5106)
• opentelemetry-sdk: make resource detector ordering deterministic (#5120)
• Fix incorrect type annotation on detectors parameter of get_aggregated_resources (#5135)
• opentelemetry-api: Enforce W3C Baggage size limits on outbound propagation in W3CBaggagePropagator.inject(). Previously only inbound extraction enforced limits; now inject also caps entries at 180, individual pairs at 4096 bytes, and total header at 8192 bytes per the W3C Baggage spec. The extract path max_pairs limit now counts all size-valid entries rather than only successfully parsed ones. (#5163)
• opentelemetry-sdk: fix multi-processor force_flush skipping remaining processors when one returns None (#5179)
• opentelemetry-test-utils: fix weaver live check hanging when weaver log output fills the pipe buffer (#5208)

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This discussion was created from the release Version 1.42.0/0.63b0.