Definition: "5.0.81" refers to the most recent major software release from Apple, released on September 29, 2023. It's often abbreviated as "5.0." This version includes updates for iOS, macOS, and WatchOS 9, introducing new features like AirDrop, a new video editing app called GarageBand, and improvements to the Siri voice assistant. "81" is significant in this context because it was Apple's code review stage of testing before the final release. It stands for "Eighty-one," which refers to the number of iterations that went into building the software from concept through testing.
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