Claude Code v2.1.7 ·
Opus 4.5 Pro Migration Notification
EntryKind: in v2.1.7,
ChangesSection of the release
What
Pro users who hadn't set a model preference are automatically migrated to Opus 4.5, with a notification displayed.
Details
- Only triggers for first-party auth users
- Shows "Model updated to Opus 4.5" notification on next session start
- Migration only occurs once, tracked via
opusProMigrationComplete state
Evidence
ww9() at line 539875 (migration logic), Xq9() at line 533528 (notification display, contains "Model updated to Opus 4.5")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
See this entry in the whole of v2.1.7 →
