v1.31.0

🛑 Breaking changes 🛑

• code: code.function.name value should contain the fully qualified function name, code.namespace is now deprecated (#1677)

• gen-ai: Introduce gen_ai.output.typeand deprecate gen_ai.openai.request.response_format (#1757)

• mobile: Rework device.app.lifecycle mobile event. (#1880)
  The device.app.lifecycle event has been reworked to use attributes instead
  of event body fields. The ios.app.state and android.app.state attributes
  have been reintroduced to the attribute registry.

• system: Move CPU-related system.cpu.* metrics to CPU namespace (#1873)

• k8s: Change k8s.replication_controller metrics to k8s.replicationcontroller (#1848)

• db: Rename db.system to db.system.name in database metrics, and update the values to be consistent with database spans. (#1581)

• session: Move session.id and session.previous_id from body fields to event attributes, and yamlize session.start and session.end events. (#1845)
  As part of the ongoing migration of event fields from LogRecord body to extended/complex attributes, the session.start and session.end events have been redefined.

💡 Enhancements 💡

• code: Mark code.* semantic conventions as release candidate (#1377)

• gen-ai: Added AI Agent Semantic Convention (#1732, #1739)

• db: Add database-specific notes on db.operation.name and db.collection.name for Cassandra, Cosmos DB, HBase, MongoDB, and Redis, covering their batch/bulk terms and lack of cross-table queries. (#1863, #1573)

• gen-ai: Adds gen_ai.request.choice.count span attribute (#1888)
  Enables recording target number of completions to generate

• enduser: Undeprecate 'enduser.id' and introduce new attribute enduser.pseudo.id (#1104)
  The new attribute enduser.pseudo.id is intended to provide a unique identifier of a pseudonymous enduser.

• k8s: Add k8s.hpa, k8s.resourcequota and k8s.replicationcontroller attributes and resources (#1656)

• k8s: How to populate resource attributes based on attributes, labels and transformation (#236)

• process: Adjust the semantic expectations for process.executable.name (#1736)

• otel: Adds SDK self-monitoring metrics for span processing (#1631)

• cicd: Adds a new attribute cicd.pipeline.run.url.full and corrects the attribute description of cicd.pipeline.task.run.url.full (#1796)

• user-agent: Add user_agent.os.name and user_agent.os.version attributes (#1433)

🧰 Bug fixes 🧰

• process: Fix units of process.open_file_descriptor.count and process.context_switches (#1662)

New Contributors

• @emdneto made their first contribution in #1827
• @geny200 made their first contribution in #1836
• @niwoerner made their first contribution in #1833
• @heyams made their first contribution in #1456
• @JonasKunz made their first contribution in #1631
• @sincejune made their first contribution in #1917

Special thanks to @chalin with all the link-checking fixes ❤️

Full Changelog: v1.30.0...v1.31.0