{"source":"semconv","version":"1.44.0","attribute":{"id":"cloudevents.event_id","type":"string","stability":"development","brief":"The [event_id](https://github.com/cloudevents/spec/blob/v1.0.2/cloudevents/spec.md#id) uniquely identifies the event.","examples":["123e4567-e89b-12d3-a456-426614174000","0001"],"namespace":"cloudevents","definedIn":"model/cloudevents/registry.yaml","usedBy":[{"groupId":"cloudevents","groupType":"attribute_group","requirementLevel":"required"}]},"history":[{"version":"1.30.0","publishedAt":"2025-01-24T19:11:42Z","kind":"first-seen","detail":"Already present at v1.30.0, the oldest release tracked here (experimental)."},{"version":"1.31.0","publishedAt":"2025-03-11T00:53:13Z","kind":"stability-changed","detail":"Stability label respelled from experimental to development.","severity":"informational"}],"replaces":[]}