DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.
The /model command description is now dynamic, displaying the currently active model: "Set the AI model for Claude Code (currently Claude Sonnet 4.6)" instead of the previous static "Set the AI model for Claude Code".
Evidence
Changed from static description: to get description() getter (search for "Set the AI model for Claude Code (currently")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.