{"version":"2.1.315","anchor":"model-catalog-error-message-replaced","canonical_anchor":"model-catalog-error-message-replaced","heading":"Unknown model message now names the Claude Code version you need","tier":"notice","area":"Models","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.315\/e\/model-catalog-error-message-replaced","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.315","markdown":"### Unknown model message now names the Claude Code version you need\n\nWhen Claude Code does not know a model, the message now reads \"Requires Claude Code v or later\"\n\n**What**\n\nWhen you pick a model that this version of Claude Code does not know about, the message now reads \"Requires Claude Code v or later\", with the version filled in. Before, it said the model was not described by this version's model catalog and suggested updating Claude Code or mapping the model with `behavesAs`.\n\n**Why**\n\nThe message is shorter and tells you which version to update to.\n\n- Area: Models\n- Tier: You'll notice\n- Useful: 1\/5\n- Signal: 2\/5\n- Scope: individual\n- Heads-up: no"}