Claude Code v2.0.58 ·
Background Model Reference Updated
EntryKind: in v2.0.58,
ChangesSection of the release
What: Claude's background information now references Opus 4.5 as the most recent frontier model instead of Sonnet 4.5.
Details:
- Affects Claude's self-awareness when discussing model capabilities
- Evidence:
Jy3 = "Claude Opus 4.5" at line 509270 in v2.0.58
See this entry in the whole of v2.0.58 →