{"source":"semconv","version":"1.44.0","attribute":{"id":"faas.version","type":"string","stability":"development","brief":"The immutable version of the function being executed.","note":"Depending on the cloud provider and platform, use:\n\n- **AWS Lambda:** The [function version](https://docs.aws.amazon.com/lambda/latest/dg/configuration-versions.html)\n  (an integer represented as a decimal string).\n- **Google Cloud Run (Services):** The [revision](https://cloud.google.com/run/docs/managing/revisions)\n  (i.e., the function name plus the revision suffix).\n- **Google Cloud Functions:** The value of the\n  [`K_REVISION` environment variable](https://cloud.google.com/run/docs/container-contract#services-env-vars).\n- **Azure Functions:** Not applicable. Do not set this attribute.","examples":["26","pinkfroid-00002"],"namespace":"faas","definedIn":"model/faas/registry.yaml","usedBy":[{"groupId":"entity.faas","groupType":"entity","signalName":"faas","requirementLevel":"recommended"}]},"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":[]}