Following yesterday’s release of the iOS 10.1 developer beta, Apple has now released a public beta version of iOS 10.1 through its Apple Software Beta Program. The iOS 10.1 public beta notably adds the “Portrait Camera” depth of field effect for iPhone 7 Plus, which Apple demonstrated at its event earlier this month — an enhancement that may encourage iPhone 7 Plus users to sign up for the public beta program to take an early peek…