Apple yesterday promised that the iOS 9 upgrade would not repeat the debacle of last year, when owners of iPhones and iPads with small storage allotments were unable to easily install the new operating system.

“We’ve been able to reduce the amount of free space you need to get to iOS 9, from the 4.6 gigs [gigabytes] that it took to get to iOS 8 down to 1.8 gigs. So everyone is going to get iOS 9,” Craig Federighi, who heads OS X and iOS development, said during Monday’s long-and-often-wandering WWDC keynote.

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