What probably matters to youSection of the release
The pre-stop outcome line is wired to the agentPushNotifEnabled setting, which falls back to false so the instruction is absent by default.
What
When the agentPushNotifEnabled setting is on, an extra line is added to the prompt asking Claude to send a one-line outcome before it stops, on the grounds that you may be away and waiting to hear it is done, unless you just told it to stop. The setting falls back to false, so the line is absent by default.
Details
The fragment returns an empty string unless both an internal check and the agentPushNotifEnabled setting pass.
Evidence
the user may be away and waiting to hear it's done
Strings lifted out of the shipped bundle, so the claim above can be checked against them.