Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
SessionsArea: what it touches
Internal ChangesKind: in v2.1.227,
Internal ChangesSection of the release
What
The marker that identifies forked-conversation boilerplate is now matched as a prefix on the first content blocks of a single message, instead of searching every text block of every user message for the substring.
Evidence
<fork-boilerplate>
Strings lifted out of the shipped bundle, so the claim above can be checked against them.