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.
Auto-titled cloud sessions no longer count as a unique name match
You'll notice
Useful3Signal2
Cloud Sessions
Messaging a session by name no longer lands on an arbitrary "untitled session".
What's wrong with this entry?
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What
Cloud and bridge sessions with an empty or auto-generated title, such as "untitled session", are now flagged as such in the session list, and sending a message by name refuses to treat one of them as an exact unique match. This stops a message going to an arbitrary untitled session.
Evidence
derivedName
Strings lifted out of the shipped bundle, so the claim above can be checked against them.