Apple has revealed that developers will be able to take full advantage of the 120Hz ProMotion display on the new iPhone 13 Pro via a plist entry, reports 9to5Mac.
Standard animations and scrolling should automatically use 120Hz without any developer updates; however, Apple has confirmed a bug that is limiting some animations driven by Core Animation to 60Hz. That bug will be resolved in a software update.
Developers who need further support for 120Hz will be able to enable it by updating their Info.plist with a new key. Documentation is coming soon.
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