Niantic explains that the decision to end support for older iOS devices is a "result of improvements to Pokémon GO that push the application beyond the capabilities of the operating systems on such devices". AR+ is (currently) exclusive to the iPhone 6s and newer phones with iOS 11, as the mode is dependent the ARKit framework built into iOS 11. Dedicated players with older iOS devices don't have much time to prepare themselves for this update, with it set to take effect on February 28th, 2018. Intel said its chips, which power Macs and devices from other manufacturers, contain the flaw, as do processors based on ARM Holdings architecture, which is used in iOS devices and Android smartphones.
Dropping support for five-year-old tech may not affect the majority of players, but plenty of families play together with children on second-hand devices.More news: Attempt to kill spider starts house fire in Northern California
Even when you're one of the most prominent and acitve players in the game with over 300,000 YouTube subscribers who love watching you play and talk about Pokemon GO. Support will be removed via an update rolling out on February 28, so upgrade now if you want to keep catching 'em all.
Affected devices include the iPhone 5c, iPhone 5, iPad (4th and 3rd generation), iPad mini (1st generation) and iPad 2. A few days ago he tweeted that he's "done with this EX-Raid Pass System", noting that it killed his motivation to play and that he'll be taking an indefinite break from Pokemon GO.