The record
Siri got only a short mention in Apple's iOS 17 release, but it marked a visible change. Apple said users could wake the assistant by saying only Siri instead of Hey Siri. The company also said several requests could be made in a row without reactivating it, and that StandBy would support Siri on a charging iPhone. This entry records an announcement, not independent testing.
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Apple’s announcement, recorded as a company statement. An announcement is not proof of availability or independent verification.