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.
When Claude Code updates while background jobs are running, the message now reads: "Claude daemon will restart for the upgrade once background jobs finish" instead of the previous "Signaled claude daemon to restart", providing clearer context.
Evidence
Restart message (search for "Claude daemon will restart for the upgrade") — line ~643713
Strings lifted out of the shipped bundle, so the claim above can be checked against them.