macOS Big Sur 11.7.3 - An Operating System Made by Apple.

macOS Big Sur elevates the most advanced desktop operating system in the world to a new level of power and beauty. Experience Mac to the fullest with a refined new design. Enjoy the biggest Safari update ever. Discover new features for Maps and Messages. And get even more transparency around your privacy.

Design

• New design for apps makes it easier to focus on your content and take action with space-efficient toolbars and full-height sidebars


• Updated menu bar features wider spacing and a new translucent material that becomes more vibrant when you interact with it


• Refreshed system sounds include the boot chime and sounds for transferring files, moving items to the Bin, locking files and more

Control Centre

• Control Centre puts your favourite menus and controls in one handy place in the menu bar so you can quickly adjust settings as you work


• Additional controls appear when you click to expand Control Centre menus


• Support for pinning favourite menus from Control Centre to the menu bar

Notification Centre

• Updated Notification Centre brings notifications and widgets together in one view


• Interactive notifications display additional information and actions when you expand them


• Beautiful new data-rich widgets for Calendar, Clock, Notes, Photos, Podcasts, Reminders, Screen Time, Stocks and Weather


• Edit view lets you add new widgets and customise their size


• Support for widgets from third-party apps

Safari

• World's fastest desktop browser with industry-leading performance and energy efficiency*


• Customisable new start page lets you set a background image and decide what appears, including Reading List, iCloud Tabs, Privacy Report and more


• Expanded extensions support and new dedicated category in the App Store for discovering new extensions


• New tab design featuring favicons in tabs, and website previews that appear when you hover over a tab


• Translation (beta) for English, Spanish, Simplified Chinese, French, German, Russian or Brazilian Portuguese


• Privacy Report gives you visibility into how Safari keeps your browsing your business, with an overview of trackers blocked by Intelligent Tracking Prevention


• Safari password monitoring securely screens saved passwords for any that may have been involved in a data breach


• Safari privacy prompts for extensions let you choose when a website can work with an extension

Messages

• Pinned conversations keep up to nine of your favourite threads at the top of the list


• Mentions let you direct a message to an individual in a group conversation


• Inline replies let you reply to a specific message earlier in the conversation


• Message effects for balloons, confetti, lasers and more


• #images helps you find and add trending GIFs to messages


• Memoji makes it simple to create a personalised character and send stickers that match your mood and personality

Maps

• Guides offer recommendations for places to go and things to do, curated by a selection of trusted brands


• Look Around to explore cities in a high-resolution, interactive 3D experience


• Indoor maps for major airports and shopping centres


• Cycling directions help you find bike-friendly routes to your destination


• Electric vehicle routing helps you plan trips for supported vehicles that you add on iPhone

Some features may not be available in all regions or on all Apple devices.

* Performance will vary based on system configuration, network connection and other factors.

AppleMobileFileIntegrity

• Available for: macOS Big Sur


• Impact: An app may be able to access user-sensitive data


• Description: This issue was addressed by enabling hardened runtime.


• CVE-2023-23499: Wojciech Reguła (@_r3ggi) of SecuRing (wojciechregula.blog)

curl

• Available for: macOS Big Sur


• Impact: Multiple issues in curl


• Description: Multiple issues were addressed by updating to curl version 7.85.0.


• CVE-2022-35252

dcerpc

• Available for: macOS Big Sur


• Impact: Mounting a maliciously crafted Samba network share may lead to arbitrary code execution


• Description: A buffer overflow issue was addressed with improved memory handling.


• CVE-2023-23513: Dimitrios Tatsis and Aleksandar Nikolic of Cisco Talos

Full list of changes available