macOS Big Sur (version 11) is the seventeenth major release of

macOS macOS (; previously OS X and originally Mac OS X) is a Unix operating system developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac computers. Within the market of desktop and lapt ...

Apple Inc. Apple Inc. is an American multinational technology company headquartered in Cupertino, California, United States. Apple is the largest technology company by revenue (totaling in 2021) and, as of June 2022, is the world's biggest company ...

operating system An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. Time-sharing operating systems schedule tasks for efficient use of the system and may also in ...

for

Macintosh The Mac (known as Macintosh until 1999) is a family of personal computers designed and marketed by Apple Inc., Apple Inc. Macs are known for their ease of use and minimalist designs, and are popular among students, creative professionals, and ...

computers. It was announced at Apple's

Worldwide Developers Conference The Worldwide Developers Conference (WWDC) is an information technology conference held annually by Apple Inc. The conference is usually held at Apple Park in California. The event is usually used to showcase new software and technologies in t ...

(WWDC) on June 22, 2020, and was released to the public on November 12, 2020. Big Sur is the successor to

macOS Catalina macOS Catalina (version 10.15) is the sixteenth major release of macOS, Apple Inc.'s desktop operating system for Macintosh computers. It is the successor to macOS Mojave and was announced at WWDC 2019 on June 3, 2019 and released to the publ ...

, and was succeeded by

macOS Monterey macOS Monterey (version 12) is the eighteenth major release of macOS, Apple's desktop operating system for Macintosh computers. The successor to macOS Big Sur, it was announced at WWDC 2021 on June 7, 2021, and released on October 25, 2021. ...

, which was released on October 25, 2021. Most notably, macOS Big Sur features a

user interface In the industrial design field of human–computer interaction, a user interface (UI) is the space where interactions between humans and machines occur. The goal of this interaction is to allow effective operation and control of the machine f ...

redesign that features new blurs to establish a visual hierarchy and also includes a revamp of the

Time Machine Time travel is the concept of movement between certain points in time, analogous to movement between different points in space by an object or a person, typically with the use of a hypothetical device known as a time machine. Time travel is a w ...

backup mechanism, among other changes. It is also the first macOS version to support Macs with ARM-based processors. To mark the transition, the operating system's major version number was incremented, for the first time since 2000, from 10 to 11. The operating system is named after the coastal region of Big Sur in the

Central Coast of California The Central Coast is an area of California, roughly spanning the coastal region between Point Mugu and Monterey Bay. It lies northwest of Los Angeles County and south of San Mateo and Santa Clara counties, and includes the rugged, undevelope ...

, continuing the naming trend of

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

locations that began with

OS X Mavericks OS X Mavericks (version 10.9) is the 10th major release of macOS, Apple Inc.'s desktop and server operating system for Macintosh computers. OS X Mavericks was announced on June 10, 2013, at WWDC 2013, and was released on October 22, 2013, wo ...

Development history

Providing some indication as to how the pre-release operating system may have been viewed internally at Apple during its development cycle, documentation accompanying the initial beta release of macOS Big Sur referred to its version as "10.16", and when upgrading from prior versions of macOS using the Software Update mechanism to early beta releases, the version referred to was "10.16". An exception to this was the

Developer Transition Kit The Developer Transition Kit is the name of two prototype Mac computers made available to software developers by Apple Inc. The first Developer Transition Kit was made available in 2005 prior to the Mac transition to Intel processors to aid in t ...

, which always reported the system version as "11.0". macOS Big Sur started reporting the system version as "11.0" on all Macs as of the third beta release. To maintain backwards compatibility, macOS Big Sur identified itself as 10.16 to software and in the browser

user agent In computing, a user agent is any software, acting on behalf of a user, which "retrieves, renders and facilitates end-user interaction with Web content". A user agent is therefore a special kind of software agent. Some prominent examples of us ...

System requirements

Unlike

, which supported every standard configuration Mac that Mojave supported, Big Sur drops support for various Macs released in 2012 and 2013. Big Sur runs on the following Macs: *

iMac iMac is a family of all-in-one Mac desktop computers designed and built by Apple Inc. It has been the primary part of Apple's consumer desktop offerings since its debut in August 1998, and has evolved through seven distinct forms. In it ...

(Mid 2014 or later) *

iMac Pro The iMac Pro is a discontinued all-in-one personal computer and workstation designed, manufactured, and sold by Apple Inc. It was released on December 14, 2017. While it was sold, it was one of four desktop computers in the Macintosh lineup, si ...

* MacBook (Early 2015 or later) *

MacBook Air The MacBook Air is a line of ultrabook computers developed and manufactured by Apple Inc. It consists of a full-size keyboard, a machined aluminum case, and, in the more modern versions, a thin light structure. The Air was originally position ...

(Mid 2013 or later) * MacBook Pro (Late 2013 or later) *

Mac Mini Mac Mini (stylized as Mac mini) is a small form factor desktop computer developed and marketed by Apple Inc. , it is positioned between the consumer all-in-one iMac and the professional Mac Studio and Mac Pro as one of four current Mac deskto ...

(Late 2014 or later) *

Mac Pro Mac Pro is a series of workstations and servers for professionals that are designed, developed and marketed by Apple Inc. since 2006. The Mac Pro, by some performance benchmarks, is the most powerful computer that Apple offers. It is one of f ...

(Late 2013 or later) *

(only up to Big Sur 11.3 beta 2) By using patch tools, macOS Big Sur can be installed on earlier computers that are officially unsupported, such as the 2012 iMac and the 2012 MacBook Pro. Using these methods, it is possible to install macOS Big Sur on computers as old as a 2008 MacBook Pro and iMac and 2009 Mac Mini.

Changes

Design

macOS Big Sur refreshes the design of the user interface, described by Apple as the biggest change since the introduction of Mac OS X. Its changes include translucency in various places, a new abstract wallpaper for the first time and a new color palette. 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. Compared to iOS, Big Sur's icons include more shading and highlights to give a three-dimensional appearance. Its aesthetic has been described as "neumorphism", a

portmanteau A portmanteau word, or portmanteau (, ) is a blend of wordsskeuomorphism. System sounds are redone as well. 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 Catalysis () is the process of increasing the rate of a chemical reaction by adding a substance known as a catalyst (). Catalysts are not consumed in the reaction and remain unchanged after it. If the reaction is rapid and the catalyst recyc ...

, which makes it possible to unify third party applications with the existing Apple-made

design language A design language or design vocabulary is an overarching scheme or style that guides the design of a complement of products or architectural settings, creating a coherent design system for styling. Objectives Designers wishing to give their su ...

Interface

Control Center

An interface with quick toggles for

Wi-Fi Wi-Fi () is a family of wireless network protocols, based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio wave ...

Bluetooth Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks (PANs). In the most widely used mode, transmission power is limi ...

, screen brightness and system volume has been added to the menu bar. This interface is functionally and visually similar to the Control Center on

iOS iOS (formerly iPhone OS) is a mobile operating system created and developed by Apple Inc. exclusively for its hardware. It is the operating system that powers many of the company's mobile devices, including the iPhone; the term also include ...

and

iPadOS iPadOS is a mobile operating system developed by Apple Inc. for its iPad line of tablet computers. It is a rebranded variant of iOS, the operating system used by Apple's iPhones, renamed to reflect the diverging features of the two product ...

Notification Center

The Notification Center is redesigned, featuring interactive notifications and a transparent user interface. Notification Center also features a new widget system similar to that in

iOS 14 iOS 14 is the fourteenth major release of the iOS mobile operating system developed by Apple Inc. for their iPhone and iPod Touch lines. Announced at the company's Worldwide Developers Conference on June 22, 2020 as the successor to iOS 13 ...

, displaying more information with more customization than previously available.

System

Support for Apple silicon

macOS Big Sur is the first release of macOS for Macs powered by Apple-designed

ARM64 AArch64 or ARM64 is the 64-bit extension of the ARM architecture family. It was first introduced with the Armv8-A architecture. Arm releases a new extension every year. ARMv8.x and ARMv9.x extensions and features Announced in October 2011, AR ...

-based processors, a key part of the transition from

Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California. It is the world's largest semiconductor chip manufacturer by revenue, and is one of the developers of the x86 seri ...

x86-64 x86-64 (also known as x64, x86_64, AMD64, and Intel 64) is a 64-bit version of the x86 instruction set, first released in 1999. It introduced two new modes of operation, 64-bit mode and compatibility mode, along with a new 4-level paging ...

-based processors. The chip mentioned in demo videos, and used in the

, is the A12Z Bionic. On November 10, 2020, Apple announced the first Mac Apple silicon chip, the

Apple M1 Apple M1 is a series of ARM-based systems-on-a-chip (SoCs) designed by Apple Inc. as a central processing unit (CPU) and graphics processing unit (GPU) for its Mac desktops and notebooks, and the iPad Pro and iPad Air tablets. The M1 c ...

, in the Late 2020 Mac Mini, MacBook Air, and MacBook Pro. Apple has said that it will support Intel Macs "for years to come", and most software that has not been

ported In software engineering, porting is the process of adapting software for the purpose of achieving some form of execution in a computing environment that is different from the one that a given program (meant for such execution) was originally desi ...

to run on ARM Macs can use

Rosetta 2 Rosetta is a dynamic binary translator developed by Apple Inc. for macOS, an application compatibility layer between different instruction set architectures. It enables a transition to newer hardware, by automatically translating software. The ...

, an update of a compatibility mechanism originally developed for the

PowerPC PowerPC (with the backronym Performance Optimization With Enhanced RISC – Performance Computing, sometimes abbreviated as PPC) is a reduced instruction set computer (RISC) instruction set architecture (ISA) created by the 1991 Apple Inc., App ...

-to-

Intel x86 x86 (also known as 80x86 or the 8086 family) is a family of complex instruction set computer (CISC) instruction set architectures initially developed by Intel based on the Intel 8086 microprocessor and its 8088 variant. The 8086 was introd ...

transition. 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.

Support for iOS and iPadOS applications

On Macs based on

Apple silicon Apple silicon is a series of system on a chip (SoC) and system in a package (SiP) processors designed by Apple Inc., mainly using the ARM architecture. It is the basis of most new Mac computers as well as iPhone, iPad, iPod Touch, Apple TV, a ...

, macOS Big Sur can run

and

applications natively and without any modifications needed from developers, aside from allowing the app to be available on the Mac App Store. The first Macs with this capability are those that use the

SoC (system on a chip).

Time Machine overhaul

, the backup mechanism introduced back in Mac OS X 10.5 Leopard, has been overhauled to utilize the

APFS Apple File System (APFS) is a proprietary file system developed and deployed by Apple Inc. for macOS Sierra (10.12.4) and later, iOS 10.3 and later, tvOS 10.2 and later, watchOS 3.2 and later, and all versions of iPadOS. It aims to fix c ...

file system In computing, file system or filesystem (often abbreviated to fs) is a method and data structure that the operating system uses to control how data is stored and retrieved. Without a file system, data placed in a storage medium would be one larg ...

(introduced in

MacOS High Sierra macOS High Sierra (version 10.13) is the fourteenth major release of macOS, Apple Inc.'s desktop operating system for Macintosh computers. macOS High Sierra was announced at the WWDC 2017 on June 5, 2017 and was released on September 25, 2017. ...

) instead of the outdated

HFS+ HFS Plus or HFS+ (also known as Mac OS Extended or HFS Extended) is a journaling file system developed by Apple Inc. It replaced the Hierarchical File System (HFS) as the primary file system of Apple computers with the 1998 release of Mac OS 8.1 ...

. Specifically, the new version of Time Machine makes use of APFS's

snapshot Snapshot, snapshots or snap shot may refer to: * Snapshot (photography), a photograph taken without preparation Computing * Snapshot (computer storage), the state of a system at a particular point in time * Snapshot (file format) or SNP, a file ...

technology. According to Apple, this enables "faster, more compact, and more reliable backups" than were possible previously with

-formatted backup destinations. 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+. A more modest yet nevertheless significant advantage was noted as well for backups to network-attached disks. New local (i.e. 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. 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. In the new version of Time Machine, encryption appears to be required (instead of merely optional) for local disks, but it remains elective for networked volumes. It is no longer possible to restore the whole system using a Time Machine backup, as the signed system volume is not backed up. Non-core applications and user data can be restored in full using Migration Assistant, preceded by a system reinstall if necessary.

Spotlight

Spotlight Spotlight or spot light may refer to: Lighting * Spot lights, automotive auxiliary lamps * Spotlight (theatre lighting) * Spotlight, a searchlight * Stage lighting instrument, stage lighting instruments, of several types Art, entertainment, an ...

, the

indexing-and-search mechanism introduced in Mac OS X 10.4 Tiger, is faster and the interface has been refined. Spotlight is now the default search mechanism in Safari, Pages, and Keynote.

Signed system volume

The system volume containing the core operating system is cryptographically signed. Apple indicates this is a security measure to prevent malicious tampering. This includes adding an SHA-256 hash for every file on the system volume, preventing changes from third-party entities and the end user.

Software updates

Software updates can begin in the background before a restart, thus requiring less downtime to complete. Because system files are cryptographically signed, the update software can rely on them being in precise locations, thus permitting them to be effectively updated in place.

Encryption

macOS Big Sur supports encryption at the file level. Earlier versions of macOS (10.15 Catalina and older) supported encryption only at the level of entire volumes. As of June 2020, this capability is known to be compatible with Macs based on Apple silicon; it is unclear whether it is compatible with Intel-based Macs.

Other changes

*Bilingual dictionaries in French–German, Indonesian–English, Japanese–Simplified Chinese and Polish–English *Better predictive input for Chinese and Japanese users *New fonts for Indian users *The "Now Playing" widget has been moved from the Notification Center to the Menu Bar *Podcasts "Listen Now" feature *FaceTime sign language prominence *

Network Utility Network utilities are software utilities designed to analyze and configure various aspects of computer networks. The majority of them originated on Unix systems, but several later ports to other operating systems exist. The most common tools (fou ...

has been deprecated *macOS startup sound is now enabled by default (it had been disabled by default on some machines released in 2016), and an option in System Preferences was added to enable or disable this functionality.

Application features

Safari

Big Sur includes

Safari A safari (; ) is an overland journey to observe wild animals, especially in eastern or southern Africa. The so-called "Big Five" game animals of Africa – lion, leopard, rhinoceros, elephant, and Cape buffalo – particularly form an importa ...

14, which was also released for

and

macOS Mojave macOS Mojave ( ; version 10.14) is the fifteenth software versioning, major release of macOS, Apple Inc.'s desktop operating system for Macintosh computers. Mojave was announced at Apple's Apple Worldwide Developers Conference, Worldwide Devel ...

on September 16, 2020. Safari 14 includes features such as a new home page in which users can customize what features are visible in addition to being able to set a custom wallpaper. It also allows the viewer to preview a page and

favicon A favicon (; short for favorite icon), also known as a shortcut icon, website icon, tab icon, URL icon, or bookmark icon, is a file containing one or more small icons, associated with a particular website or web page. A web designer can create s ...

before visiting it. Safari 14 also includes built-in web page translations in English, Spanish, German, French, Russian, Chinese and Portuguese as well as support for 4K HDR content from

Netflix Netflix, Inc. is an American subscription video on-demand over-the-top streaming service and production company based in Los Gatos, California. Founded in 1997 by Reed Hastings and Marc Randolph in Scotts Valley, California, it offers a fil ...

on Macs with an

Apple T2 The Apple T2 (Apple's internal name is T8012) security chip is a system on a chip "SoC" tasked with providing security and controller features to Apple's Intel based Macintosh computers. It is a 64-bit ARMv8 chip and runs bridgeOS. T2 has its ...

chip, although none of these were made available for macOS Catalina and Mojave. Privacy features such as iCloud Keychain (which notifies users of compromised passwords), extension privacy management and Privacy Report (which monitors privacy trackers and further increases Safari's security) were added for Safari 14. Users were now also able to import password from Google's Chrome browser in addition to being notified of compromised passwords. Safari 14 also supports WebExtensions API, the

WebP WebP is an image file format developed by Google intended as a replacement for JPEG, PNG, and GIF file formats. It supports both lossy and lossless compression, as well as animation and alpha transparency. Google announced the WebP format i ...

image format as well as

VP9 VP9 is an open and royalty-free video coding format developed by Google. VP9 is the successor to VP8 and competes mainly with MPEG's High Efficiency Video Coding (HEVC/H.265). At first, VP9 was mainly used on Google's video platform YouTube. ...

decoding, the latter of which allows for the playback of 4K and HDR content from

YouTube YouTube is a global online video platform, online video sharing and social media, social media platform headquartered in San Bruno, California. It was launched on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim. It is owned by ...

. In addition, it allowed for better performance and power efficiency. Safari 14 ended support for

Adobe Flash Player Adobe Flash Player (known in Internet Explorer, Firefox, and Google Chrome as Shockwave Flash) is Software, computer software for viewing multimedia contents, executing rich Internet applications, and streaming media, streaming audio and vide ...

in September, 3 months prior to its end-of-life on December 31, 2020.

Messages

The Messages app was rewritten to be based upon Apple's

technology to enable it to have feature parity with its iOS counterpart. The new version of the app included a refined design as well as the ability to pin up to nine conversations that can sync across

and

. Users were also now allowed to search for messages and share their names and photos. Photo thumbnails could now also be used for group chats on the app. In addition, users could mention contacts by putting the @ symbol in front of their name. They were also able to reply to specific messages.

Memoji The implementation of emojis on different platforms took place across a three-decade period, starting in the 1990s. Today, the exact appearance of emoji is not prescribed but can vary between fonts and platforms, much like different typefaces. ...

s, 3d avatars were also made available on Messages. On Messages, users could now select photos based on parameters. In

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

, text message effects were added when users sent certain texts (e.g., texting "Happy Holi" will result in users seeing effects).

Changes to the Mac App Store

Refinements and new features of the

Mac App Store The App Store (also known as the Mac App Store) is a digital distribution platform for macOS apps, often referred to as Mac apps, created and maintained by Apple Inc. The platform was announced on October 20, 2010, at Apple's "Back to the Mac" ...

include: *A new "nutrition label" section dedicated to the data and information an app collects, also featured in the iOS App Store *A new extensions category for

*Third party Notification Center widgets, similar to those also added in iOS and iPadOS 14. *The ability to share in-app purchases and subscriptions on the Mac via

iCloud iCloud is a Personal cloud, cloud service from Apple Inc. launched on October 12, 2011 as a successor to MobileMe. , the service had an estimated 850 million users, up from 782 million users in 2016. iCloud enables users to sync their data to t ...

Family Sharing

Notes

*Collapsible pinned section *Quick text style and formatting options *Scanning enhancements

Photos

*New editing capabilities *Improved Retouch tool *New zooming feature in views

Maps

*" Look Around" interactive street-level 360° panoramas, first implemented in the iOS 13 version of

Maps A map is a symbolic depiction emphasizing relationships between elements of some space, such as objects, regions, or themes. Many maps are static, fixed to paper or some other durable medium, while others are dynamic or interactive. Although ...

, have been incorporated into the macOS version of Maps. *Availability of directions for cyclists. *

Electric vehicle An electric vehicle (EV) is a vehicle that uses one or more electric motors for propulsion. It can be powered by a collector system, with electricity from extravehicular sources, or it can be powered autonomously by a battery (sometimes cha ...

routing, based on proximity to

charging station A charging station, also known as a charge point or electric vehicle supply equipment (EVSE), is a piece of equipment that supplies electrical power for charging plug-in electric vehicles (including electric cars, electric trucks, electric ...

s and monitoring of battery levels (on selected car models). *Guides for exploring new places.

Voice Memos

* a file structure has been implemented to allow organization of recordings in folders * recordings can be marked as Favorites for easier subsequent access * Smart Folders automatically group Apple Watch recordings, recently deleted recordings, and Favorites * audio can be enhanced to reduce background noise and room reverb

Other applications found in macOS 11 Big Sur

*About This Mac *Activity Monitor *AirPort Utility *Archive Utility *Audio MIDI Setup *Automator *Bluetooth File Exchange *

Books A book is a medium for recording information in the form of writing or images, typically composed of many pages (made of papyrus, parchment, vellum, or paper) bound together and protected by a cover. The technical term for this physical ar ...

* Boot Camp Assistant *

Calculator An electronic calculator is typically a portable electronic device used to perform calculations, ranging from basic arithmetic to complex mathematics. The first solid-state electronic calculator was created in the early 1960s. Pocket-sized ...

Calendar A calendar is a system of organizing days. This is done by giving names to periods of time, typically days, weeks, months and years. A date is the designation of a single and specific day within such a system. A calendar is also a physi ...

*Chess *ColorSync Utility *Console *

Contacts Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic devices used by over 150 million people worldwide, and they can be worn to correct vision or for cosmetic ...

Dictionary A dictionary is a listing of lexemes from the lexicon of one or more specific languages, often arranged alphabetically (or by radical and stroke for ideographic languages), which may include information on definitions, usage, etymologies ...

Digital Color Meter This is a list of macOS built-in apps and system components. Applications App Store The Mac App Store is macOS's digital distribution platform for macOS apps, created and maintained by Apple Inc. based on the iOS version, the platform was an ...

* Directory Utility *

Disk Utility A disk utility is a utility program that allows a user to perform various functions on a computer disk, such as disk partitioning and logical volume management, as well as multiple smaller tasks such as changing drive letters and other mount poi ...

DVD Player A DVD player is a device that plays DVDs produced under both the DVD-Video and DVD-Audio technical standards, two different and incompatible standards. Some DVD players will also play audio CDs. DVD players are connected to a television to wa ...

*Expansion Slot Utility *

FaceTime FaceTime is a Proprietary software, proprietary videotelephony product developed by Apple Inc. FaceTime is available on supported iOS mobile devices running iOS 4 and later and Mac computers that run and later. FaceTime supports any iOS devic ...

*Feedback Assistant *

Find My Find My is an asset tracking app and service provided by Apple Inc. that enables users to track the location of iOS, iPadOS, macOS, watchOS devices, AirPods, AirTags and a number of supported third-party accessories through a connected iCloud acc ...

* Finder *Folder Actions Setup *

Font Book Font Book is a font manager by Apple Inc. for its macOS operating system. It was first released with Mac OS X Panther in 2003. Features It is opened by default whenever the user clicks on a new .otf or .ttf font file. The user can view the ...

Grapher Grapher is a computer program bundled with macOS since version 10.4 that is able to create 2D and 3D graphs from simple and complex equations. It includes a variety of samples ranging from differential equations to 3D-rendered Toroids and Lo ...

Home A home, or domicile, is a space used as a permanent or semi-permanent residence for one or many humans, and sometimes various companion animals. It is a fully or semi sheltered space and can have both interior and exterior aspects to it. H ...

*Image Capture *iOS App Installer * Keychain Access *

Mail The mail or post is a system for physically transporting postcards, letter (message), letters, and parcel (package), parcels. A postal service can be private or public, though many governments place restrictions on private systems. Since the mid ...

Launchpad A launch pad is an above-ground platform from which rocket- missiles or space launch vehicles take off vertically. Launch pad may also refer to: Computing * Launchpad (macOS), an application launcher introduced in Mac OS X Lion * Launch Pad (s ...

* Migration Assistant * Mission Control *

Music Music is generally defined as the art of arranging sound to create some combination of form, harmony, melody, rhythm or otherwise expressive content. Exact definitions of music vary considerably around the world, though it is an aspect ...

News News is information about current events. This may be provided through many different Media (communication), media: word of mouth, printing, Mail, postal systems, broadcasting, Telecommunications, electronic communication, or through the tes ...

(only available for

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...

, and

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

) *

Photo Booth A photo booth is a vending machine or modern kiosk that contains an automated, usually coin-operated, camera and film processor. Today, the vast majority of photo booths are digital. History The patent for the first automated photography ma ...

* Podcasts *

Preview Preview may refer to: Theatre, film, television * Preview (subscription service), an early subscription television service in the United States * Preview (theatre), a public performance of a theatrical show before the official opening * Previe ...

QuickTime Player QuickTime is an extensible multimedia framework developed by Apple Inc., capable of handling various formats of digital video, picture, sound, panoramic images, and interactivity. Created in 1991, the latest Mac version, QuickTime X, is avail ...

* Reminders *Screenshot (succeeded Grab since

macOS 10.14 Mojave macOS Mojave ( ; version 10.14) is the fifteenth software versioning, major release of macOS, Apple Inc.'s desktop operating system for Macintosh computers. Mojave was announced at Apple's Apple Worldwide Developers Conference, Worldwide Devel ...

) *

Script Editor A script editor is a member of the production team of scripted television and radio programmes, usually dramas and comedies. The script editor has many responsibilities including finding new script writers, developing storyline and series ideas wi ...

Siri Siri ( ) is a virtual assistant that is part of Apple Inc.'s iOS, iPadOS, watchOS, macOS, tvOS, and audioOS operating systems. It uses voice queries, gesture based control, focus-tracking and a natural-language user interface to answer questio ...

* Stickies *Stocks *Storage Management * System Information *

Terminal Terminal may refer to: Computing Hardware * Terminal (electronics), a device for joining electrical circuits together * Terminal (telecommunication), a device communicating over a line * Computer terminal, a set of primary input and output dev ...

TextEdit TextEdit is an open-source word processor and text editor, first featured in NeXT's NeXTSTEP and OPENSTEP. It is now distributed with macOS since Apple Inc.'s acquisition of NeXT, and available as a GNUstep application for other Unix-like oper ...

*Ticket Viewer *

* TV * VoiceOver Utility *Wireless Diagnostics

Removed functionality

*Calculator Notification Center Widget *Option to toggle Font Smoothing in System Preferences *Support in Safari for AdBlock plugins like

uBlock Origin uBlock Origin (; "" ) is a free and open-source browser extension for content filtering, including ad blocking. The extension is available for Chrome, Chromium, Edge, Firefox, Opera, Pale Moon, as well as versions of Safari prior to 13 ...

*Removed the option not to have a clock in the menu bar.

Criticism

The rollout of Big Sur came with several problems. Upgrading to the initial public release of Big Sur (version 11.0.1)

bricked A brick (or bricked device) is a mobile device, game console, router (computing), router or other consumer electronics, consumer electronic device that is no longer functional due to corrupted firmware, a computer hardware, hardware problem, or ...

some computers, rendering them unusable. Many of these were 2013 and 2014 MacBook Pros, though problems were also observed on a 2019 MacBook Pro and an iMac from the same year. The initial rollout also disrupted Apple's app notarization process, causing slowdowns even on devices not running Big Sur. Users also reported that the update was slow or even might fail to install. macOS Catalina and Big Sur apps were taking a long time to load because of

Gatekeeper A gatekeeper is a person who controls access to something, for example via a city gate or bouncer, or more abstractly, controls who is granted access to a category or status. Gatekeepers assess who is "in or out", in the classic words of manage ...

issues. The ongoing issues with the

COVID-19 pandemic The COVID-19 pandemic, also known as the coronavirus pandemic, is an ongoing global pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The novel virus was first identif ...

meant it was hard for users to visit an Apple Store to get their machines fixed. Shortly afterwards, Apple released a series of steps explaining how these Macs could be recovered. Certain Apple applications running on early versions of Big Sur were reported to bypass firewalls, raising privacy and security concerns. This was addressed with the release of macOS Big Sur 11.2, which removed the whitelist for built-in programs. Conversely, security experts have reported that Big Sur will check an application's certificate every time it is run, degrading system performance. There have been reports that the operating system sends a hash back to Apple of every program run and when it was executed. Apple responded that the process is part of efforts to protect users from malware embedded in applications downloaded outside of the

. Some users have reported problems connecting external displays to Macs running Big Sur 11.1 and 11.2. When upgrading Macs from 10.13, 10.14 and 10.15 to Big Sur the upgrade process could become stuck for seemingly unclear reasons. Only a full system restore from backup would solve this problem. On 21 October 2021 a solution became known that required removal of up to several hundreds of thousands excess temporary files in the system folders.

Vulnerability

In 2021, there were reports of two malware codes that infected macOS and include both x86-64 and ARM64 code. The first one was detected in early 2021. The second one, Silver Sparrow, was detected on nearly 30,000 Macs in February 2021.

Release history

The public release of macOS 11 Big Sur began with 11.0.1 for Intel Macs. Version 11.0 was preinstalled on Apple silicon Macs, and Apple advised those with that version to be updated to 11.0.1.

Timeline of Macintosh operating systems

References

External links

* – official site {{Apple software 16 2020 software Computer-related introductions in 2020 ARM operating systems X86-64 operating systems