A notification for a software update just arrived my Infinix Hot 2 device. Mr. Mo and some other users have also confirmed receiving the update too. See screenshot below.
Google released a set of updates this week for all Nexus devices, probably this one comes as one of such. Something tells me this update is a fix for the much publicized Stagefright malware.
Meanwhile, earlier today some users complained of freezing on their phones, though I’m yet to experience it. The update should hopefully fix the freezing bug. For no reason, the update downloaded by itself, and only asked to be installed. If you own the Infinix Hot 2, check, you might receive the update too. Also share if the freezing continues.