{"source":"semconv","version":"1.44.0","attribute":{"id":"feature_flag.version","type":"string","stability":"release_candidate","brief":"The version of the ruleset used during the evaluation. This may be any stable value which uniquely identifies the ruleset.","examples":["1","01ABCDEF"],"namespace":"feature_flag","definedIn":"model/feature-flags/registry.yaml","usedBy":[{"groupId":"event.feature_flag.evaluation","groupType":"event","signalName":"feature_flag.evaluation","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"},{"version":"1.35.0","publishedAt":"2025-06-30T20:02:16Z","kind":"stability-changed","detail":"Promoted to release_candidate.","severity":"notable"}],"replaces":[]}