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 session file path is now set via a setSessionFile() method call rather than direct property assignment, preparing for more controlled session lifecycle management.
Evidence
Method call (search for "r.setSessionFile(o)")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.