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Reading a new release v2.1.251 Analysing changes · 2/5 Sorting the findings · 1/4 steps 470 findings $18.91 so far

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.

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Claude Code v2.1.105

/btw Fork to Full Session

What

After receiving a /btw side-question response, press f to fork it into a full independent conversation session.

Usage
/btw what's the syntax for Python decorators?
# ... response appears ...
# Press f to fork into a new session with this context
# Press Esc to dismiss as before
Details
  • New keybinding: f to fork shown in the /btw footer when a response is available
  • Forks the /btw context into a new session via branchAndResume
  • Shows "Forking into a new session…" status while the fork is in progress
  • Previous /btw questions in the session are now shown as a collapsed history: "(+N earlier /btw)"
Evidence

Fork keybinding (search for "f to fork") and fork status (search for "Forking into a new session")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.105 →