After making the announcement last summer at WWDC 2016, Apple has begun to make good on its promise to ship its new file system in 2017.
With the latest major iOS update 10.3, iDevices that get the upgrade will automatically have their HFS+ file systems converted to Apple File System (APFS).
According to Apple’s beta release notes, “When you update to iOS 10.3, your iOS device will update its file system to Apple File System (APFS). This conversion preserves existing data on your device. However, as with any software update, it is recommended that you create a backup of your device before updating.”
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Apple will presumably begin to convert all of its devices including Macs, Apple TVs and Apple Watches later in the year.
After Apple made the announcement at WWDC in June, the Rocket Yard took a deep dive into APFS to explain what the new file system means. You can read the article and find out more at: eshop.macsales.com/blog/36808-tech-101-we-explain-the-new-apple-file-system-apfs