David Smith observed a different iOS 27 adoption curve compared to previous years. The growth is steady, resembling a typical "steady growth" phase, but lacks the initial surge. This slower rollout is attributed to Apple's automatic update logic. Smith suspects this is a deliberate choice to manage the Siri AI waiting list and prevent day-one queues. His data from Widgetsmith and Pedometer++ supports this theory, showing a slower push of automatic updates. Apple has progressively slowed down updates to initial .0 versions in recent years. The company also encourages users to opt into automatic software updates, leading to most users receiving OS updates passively. Last year's slower iOS 26 adoption was also linked to Apple's auto-update pace. The author subjectively feels Siri AI has degraded since iOS 27.0, experiencing slowdowns and poorer responses. Scaling Siri AI's Private Cloud Compute for over a billion eligible users presents a significant challenge.