It is worth noting that Apple has specifically mentioned that this feature is included in iOS 11.3 for «testing and evaluation» purposes, which seems to indicate that the company might still be playing it safe with this particular feature, even in the very first developer beta. (iphonehacks.com)
When Google released the first developer beta of Android P earlier this year, I looked like it was shaping up to be a bit boring. (bgr.com)
Apple unveiled iOS 11 in June of 2017 during its Worldwide Developer Conference, releasing the first developer beta the same day. (9to5mac.com)