Although Windows 10 Mobile Anniversary Update did not arrive next to its siblings targeting PCs and XBox One gaming consoles, it appears that the wait is finally over.
Earlier this week, Microsoft confirmed in a message on Twitter that the open market would get the Windows 10 Mobile Anniversary Update today. In the meantime, that message published by the official Lumia India Twitter account has been deleted, but Windows Central has confirmed the date as well. However, they also added that only unlocked Lumias and probably Coship, Acer, or NuAns devices are expected to get the update today. Operator-branded handsets like AT&T's Lumia 950 or T-Mobile's Alcatel OneTouch Fierce XL are apparently scheduled to get the update next week, more precisely on August 16th.
According to a recent changelog for the PC variant of the build that is expected to hit mobiles as well, this update will come with a fix for the issues that cause high battery drain when Windows 10 Mobile devices are in idle or screen off mode. We will probably hear more about Windows 10 Mobile Anniversary Update later this week or/and when the carriers unleash it for their devices, so stay tuned.