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 .worktreeinclude file processing for worktree sessions now uses ignore pattern matching (similar to .gitignore) instead of simple file list comparison, supporting glob patterns and directory matching for more flexible file copying into worktrees.
Evidence
Worktree include (search for ".worktreeinclude")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.