There is no option to convert existing, HFS+-based backups to APFS instead, users who want to benefit from the advantages of the new, APFS-based implementation of Time Machine need to start with a fresh volume. USB- or Thunderbolt-connected) and network-connected Time Machine backup destinations are formatted as APFS by default, though Time Machine can continue backing up to existing HFS+ backup volumes.
A more modest yet nevertheless significant advantage was noted as well for backups to network-attached disks. An independent evaluation of this claim found that Time Machine on macOS 11 in conjunction with APFS was 2.75-fold faster upon initial local backup and 4-fold faster upon subsequent backups relative to macOS 10.15's Time Machine implementation using HFS+. According to Apple, this enables "faster, more compact, and more reliable backups" than were possible previously with HFS+-formatted backup destinations. Specifically, the new version of Time Machine makes use of APFS's snapshot technology.
Mac os 11 mac os x#
Time Machine, the backup mechanism introduced in Mac OS X 10.5 Leopard, has been overhauled to utilize the APFS file system instead of HFS+. The first Macs with this capability are those that use the Apple M1 SoC (system on a chip). On Macs based on Apple silicon, macOS Big Sur can run iOS and iPadOS applications natively and without any modifications needed from developers, aside from allowing the app to be available on the Mac App Store. Likewise, Apple also introduced an updated universal binary format, Universal 2, which allows developers to package their applications so that they can run natively on both ARM64 and x86-64 processors.
Mac os 11 update#
Apple has said that it will support Intel Macs "for years to come", and most software that has not been ported to run on ARM Macs can use Rosetta 2, an update of a compatibility mechanism originally developed for the PowerPC-to- Intel x86 transition. On November 10, 2020, Apple announced the first Mac Apple silicon chip, the Apple M1, in the Late 2020 Mac Mini, MacBook Air, and MacBook Pro. The chip mentioned in demo videos, and used in the Developer Transition Kit, is the A12Z Bionic. MacOS Big Sur is the first release of macOS for Macs powered by Apple-designed ARM64-based processors, a key part of the transition from Intel x86-64-based processors. Notification Center also features a new widget system similar to that in iOS 14, displaying more information with more customization than previously available. The Notification Center is redesigned, featuring interactive notifications and a transparent user interface. This interface is functionally and visually similar to Control Center on iOS and iPadOS. Interface Control Center Īn interface with quick toggles for Wi-Fi, Bluetooth, screen brightness and system volume has been added to the menu bar. The new OS also brings further integration with Apple's SF Symbols, enabling easier use by third-party developers as UI elements for their applications through AppKit, SwiftUI, and Catalyst, which makes it possible to unify third party applications with the existing Apple-made design language. Its aesthetic has been described as "neumorphism", a portmanteau of new and skeuomorphism. Compared to iOS, Big Sur's icons include more shading and highlights to give a three-dimensional appearance. All standard apps, as well as the Dock and the Menu Bar, are redesigned and streamlined, and their icons now have rounded-square shapes like iOS and iPadOS apps. Its changes include translucency in various places, a new abstract wallpaper for the first time and a new color palette. MacOS Big Sur refreshes the design of the user interface, described by Apple as the biggest change since the introduction of Mac OS X.
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