Unclear Whether this renumbering accompanies any functional change is not established by the evidence.
What
The internal component that manages the footer, model switching, thinking-mode toggle, fast mode, and related dialogs (workflow panel, bash panel, model picker) had its internal memoization indexing renumbered. The visible logic and behavior appear the same as before.
Why
This looks like internal bookkeeping with no user-facing effect.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
Whether this renumbering accompanies any functional change is not established by the evidence.
Anthropic's release notes agree
Changed Fable to always appear in /model on the Anthropic API; it is greyed out only when your organization's settings disable it