{"source":"semconv","version":"1.44.0","attribute":{"id":"host.mac","type":"string[]","stability":"development","brief":"Available MAC addresses of the host, excluding loopback interfaces.","note":"MAC Addresses MUST be represented in [IEEE RA hexadecimal form](https://standards.ieee.org/wp-content/uploads/import/documents/tutorials/eui.pdf): as hyphen-separated octets in uppercase hexadecimal form from most to least significant.","examples":["[\"AC-DE-48-23-45-67\",\"AC-DE-48-23-45-67-01-9F\"]"],"namespace":"host","definedIn":"model/host/registry.yaml","usedBy":[{"groupId":"entity.host","groupType":"entity","signalName":"host","requirementLevel":"opt_in"}]},"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":[]}