Older iPhone models often take a performance and power hit when a new version of iOS arrives, but software updates may help.

Older iPhone models often take a performance and power hit when a new version of iOS arrives, but software updates may help. http://ift.tt/2zlXvzk The New York Times Older iPhone models often take a performance and power hit when a new version of iOS arrives, but software updates may help. http://ift.tt/2AcK9Va Older iPhone models often take a performance and power hit when a new version of iOS arrives, but software updates may help.
By J. D. BIERSDORFER from NYT Technology http://ift.tt/2AcK9Va
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