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.
Notifications can be routed to a specific session queue
Under the hood
Useful2Signal3
Terminal UI
A background task or subagent can now send its notification into one particular session.
What's wrong with this entry?
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What
A new helper builds task-notification entries and sends them either to the global sink or to a queue passed in, so a background task or subagent can deliver its notification into one particular session.
Evidence
enqueuePendingNotification
Strings lifted out of the shipped bundle, so the claim above can be checked against them.