Nothing to try yetTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Thinking DisplayArea: what it touches
In DevelopmentKind: in v2.1.240,
In DevelopmentSection of the release
The streaming preview skips narration blocks only with the sable-thrush gate on, which defaults off.
What
The streaming path used to always show the first thinking block of a reply as the in-progress thinking preview. It now checks whether that block is narration first and shows nothing if so. Only reachable with the sable-thrush gate on, which is off by default.
Details
The call site also checks that the narration helper is present before using it, so builds without it behave as before.
Evidence
isNarrationSummaryBlock
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
