{"version":"2.1.219","anchor":"fast-mode-availability-records-how-it-was-derived","canonical_anchor":"fast-mode-availability-records-how-it-was-derived","heading":"Fast-mode availability records how it was derived","tier":"internal","area":"Models","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.219\/e\/fast-mode-availability-records-how-it-was-derived","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.219","markdown":"### Fast-mode availability records how it was derived\n\nWhen fast mode looks unavailable, the cache now records whether that was a guess or confirmed.\n\n**What**\n\nThe cached fast-mode availability record notes when a disabled state was guessed locally rather than confirmed by the server.\n\n**Details**\n\n- the disabled branch now carries `source: \"guess\"` alongside the existing `reason: \"unknown\"`\n\n**Evidence**\n\n`{ status: \"disabled\", reason: \"unknown\", source: \"guess\" }`\n\n- Area: Models\n- Tier: Under the hood\n- Useful: 2\/5\n- Signal: 0\/5"}