You'll notice
Claude Code now tells you when switching models fails instead of failing silently
What
If you switch models (for example with a model-switch command) and the switch does not succeed, Claude Code now shows a 'Model switch failed' message. Previously this kind of failure was not surfaced at all.
Why
Before this change, a failed model switch could leave you unsure whether you were talking to the model you asked for. Now you get a clear signal when the switch didn't go through.