{"source":"semconv","version":"1.44.0","attribute":{"id":"aspnetcore.routing.is_fallback","type":"boolean","stability":"stable","brief":"A value that indicates whether the matched route is a fallback route.","examples":["true"],"namespace":"aspnetcore","definedIn":"model/aspnetcore/registry.yaml","usedBy":[{"groupId":"metric.aspnetcore.routing.match_attempts","groupType":"metric","signalName":"aspnetcore.routing.match_attempts","requirementLevel":"conditionally_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 (stable)."}],"replaces":[]}