{"version":"2.1.9","anchor":"opus-4-5-upgrade-nudge","canonical_anchor":"opus-4-5-upgrade-nudge","heading":"Opus 4.5 Upgrade Nudge","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.9\/e\/opus-4-5-upgrade-nudge","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.9","markdown":"### Opus 4.5 Upgrade Nudge\n\n**What**\n\nUsers on older Opus 4.x models (Opus 4.0, 4.1) now see a notification suggesting they upgrade to Opus 4.5.\n\n**Details**\n\n- Only shows for first-party users (claude.ai)\n- Displays: \"Opus 4.5 is available and is our best model for coding\"\n- Includes a hint to use `\/model` command to upgrade\n- Nudge appears for ~10 seconds then dismisses\n\n**Evidence**\n\n`vN9()` at line 535826 (opus upgrade nudge, contains `\"opus-45-upgrade-nudge\"`, `\"Opus 4.5 is available and is our best model for coding\"`)"}