Apple Seeds First Beta of macOS Big Sur to Developers for Testing Purposes

Apple today introduced the newest version of macOS, the operating system that runs on the Mac. macOS 11.0 Big Sur is now available in a beta capacity for registered developers who want to test out the new features.

f1592849341
The macOS Big Sur beta can be downloaded through the Apple Developer Center and once the appropriate profile is installed, subsequent betas will be available through the Software Update mechanism in System Preferences. As with all of the new betas, Apple recommends not installing macOS Big Sur on a primary machine because it is early release software and could have major bugs.

macOS Big Sur is a major update that introduces a refined design for the macOS operating system. It's iOS like, but immediately familiar to Mac users with small tweaks to window design, color palette, app icons, and more.

Control Center is now available for the Mac, offering up quick access to controls right from the desktop, and the updated Notification Center includes interactive notifications and redesigned widgets that mirror the widgets on iOS.

Safari has major new features that include a customizable start page, built-in translation, and a Privacy Report that lets you know what trackers each webpage us using. There's a new Mac App Store category for extensions, and tools for devs to bring extensions created for other browsers to Safari.

The Messages app for Mac is now based on the Messages app on iOS with support for all of the new features like pinned conversations, @ mentions, inline replies for group messages, and more. Messages effects and Memoji Stickers are now available for the Mac, as are Memoji customization options.

Maps has also been overhauled in macOS Big Sur with Guides, Look Around, indoor maps, and more, plus support for cycling routes and electric vehicles.

macOS Big Sur is only available to registered developers at this time, but later in the summer, Apple will make a public version of the macOS Big Sur beta available to give public beta testers a chance to try the software before it sees a public launch this fall.

Related Forum: macOS Big Sur

Top Rated Comments

Lazy Avatar
45 months ago
Looks like a nice upgrade. I’ll be skipping Catalina entirely and moving straight from Mojave to Big Sur.
Score: 16 Votes (Like | Disagree)
FlyGuyDEN Avatar
45 months ago
Did anyone else notice the boot chime when they announced Big Sur? Will someone let us know if they're put it back in? I have it re-enabled on my 16" MBP running Catalina.
Score: 9 Votes (Like | Disagree)
tywebb13 Avatar
45 months ago
Once you download it you can make a bootable USB (at least 16GB, named initially as Untitled) with this command:

sudo /Applications/Install\ macOS\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled

It is likely this command will change in beta 2 when it may include the name Big Sur.

Normally Beta 1's are nameless and go with a number. This time the command doesn't have a number either.

Could be 11.0 but more likely 10.16 so far. It might change to 11 in beta 2
Score: 7 Votes (Like | Disagree)
talmy Avatar
45 months ago
Note this marks the end of OS X. We've now gone to 11.

Unless you've got one of the developers ARM systems, there's nothing to see here but cosmetic changes and revised apps, and those app revisions really could have been done without a new OS.
Score: 7 Votes (Like | Disagree)
meme1255 Avatar
45 months ago

Is this a typo?
I don't think so, Catalina still behaves like alpha...
Score: 7 Votes (Like | Disagree)
MisterAndrew Avatar
45 months ago

Wow, you must be one of the very first. Well done. Show a picture in 'Day' mode as well? Are you using it on your primary machine or a secondary one?
My primary machine, but I have it installed on its own drive. I'm going to avoid signing into iCloud on it since it's just for testing right now.



Attachment Image

Attachment Image
Score: 6 Votes (Like | Disagree)

Popular Stories

iOS 17

iOS 17.2 Will Add These 12 New Features to Your iPhone

Friday December 1, 2023 12:19 pm PST by
iOS 17.2 has been in beta testing for over a month, and it should be released to all users in a few more weeks. The software update includes many new features and changes for iPhones, including the dozen that we have highlighted below. iOS 17.2 is expected to be released to the public in mid-December. To learn about even more features coming in the update, check out our full list. Journal ...
iOS 16 4 Web Push

Apple Confirms Governments Using Push Notifications to Surveil Users

Wednesday December 6, 2023 5:06 am PST by
Unidentified governments are surveilling smartphone users by tracking push notifications that move through Google's and Apple's servers, a US senator warned on Wednesday (via Reuters). In a letter to the Department of Justice, Senator Ron Wyden said foreign officials were demanding the data from the tech giants to track smartphones. The traffic flowing from apps that send push notifications...
airpods pro 2 pink

Apple Releases New AirPods Pro 2 Firmware

Tuesday December 5, 2023 11:28 am PST by
Apple today released new firmware update for both the Lightning and USB-C versions of the AirPods Pro 2. The new firmware is version 6B34, up from the 6B32 firmware introduced in November. Apple does not provide details on what features might be included in the refreshed firmware beyond "bug fixes and other improvements," so it is unclear what's new in the update, but prior software releases ...
Beyond iPhone 13 Better Blue

'All-Screen' iPhone Under-Display Camera Enters Development

Wednesday December 6, 2023 2:03 am PST by
Apple's Korean suppliers have begun developing smartphone under-display cameras (UDC), paving the way for the first iPhone with a true "all-screen" appearance. According to The Elec, LG Innotek has entered the preliminary development of the UDC, which sits under the display and does not result in a visible hole in the panel when the camera is not in use. A UDC differs from a typical front ...
magsafe blue 2

iOS 17.2 Brings Qi2 Support to iPhone 13 and iPhone 14 Models

Tuesday December 5, 2023 11:04 am PST by
The iOS 17.2 update that Apple is set to release to the public in the near future will bring support for the next-generation Qi2 wireless charging standard to the iPhone 13 and iPhone 14 models. Qi2 was mentioned in the release notes for the RC version of the update that came out today. With the addition of support for the new standard, iPhone 13 and iPhone 14 models will work with Qi2...
iphone se 4 modified flag edges

iPhone SE 4 May Reuse Existing iPhone 14 Battery

Wednesday December 6, 2023 1:17 pm PST by
Recently, MacRumors has received details on the battery currently being tested on the upcoming fourth-generation iPhone SE, and the information corroborates previous findings in relation to the device. The iPhone SE 4, known by its device identifier D59, is expected to use the exact same battery found in the base model iPhone 14. Partially assembled prototypes of the next iPhone SE have been ...
airpods pro bulbs

Black Friday Prices Return for AirPods Pro 2 With USB-C, iPad, and More

Tuesday December 5, 2023 7:30 am PST by
Today we're tracking a collection of deals that are matching - or nearly matching - the same all-time low discounts we saw during Black Friday. This includes the AirPods Pro 2 with USB-C, 9th generation iPad, and M1 MacBook Air. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep the ...
instagram messenger

Instagram and Facebook Messenger Chats to Disconnect This Month

Tuesday December 5, 2023 1:57 am PST by
Meta has revealed plans to end Instagram users' ability to chat with Facebook accounts later this month, rolling back a feature that it introduced over three years ago. In September 2020, Meta (then Facebook) announced it was merging its Facebook Messenger service with Instagram direct messaging, allowing Instagram users to chat with Facebook users and vice versa using the same platform....