Now, don’t all rush to update, the linked article is only for PCs, i.e. the x86 variant of Windows 10. But the arrival of the very first ‘Redstone 3’ builds for PC coincided (a few hours ago) with a system push notification on my Fast ring smartphones telling me to ‘check my Insider ring status’. Which is clearly a hint that if one doesn’t want Redstone 3 pushed to the phone pretty soon then now would be a good time to move to the ‘Release Preview’ ring and stay with the more stable ‘Redstone 2’ (Creators Update) for the next six months. So I guess it depends how close you want your smartphone to sail to the wind!