Apple Releases Sixth Beta of macOS Big Sur to Developers [Updated]

Apple today seeded the sixth beta of the upcoming macOS Big Sur update to developers for testing purposes, two weeks after releasing the fifth beta and more than two months after the new update was unveiled at the Worldwide Developers Conference.

macOS dev beta 6 feature 1
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.

macOS Big Sur introduces a refreshed design to the Mac operating system, overhauling the entire look from the curvature of the window corners to the dock icons to the system sounds. Everything feels fresh but familiar, with a lighter and more modern appearance. There's a new customizable Control Center that mirrors the Control Center on iOS devices, putting key system controls right at your fingertips.

The Notification Center has been redesigned with iOS-style widgets that are available in multiple sizes, plus there are more interactive notifications that are now grouped by app to make it easier to see what's going on. Safari is faster and more battery efficient, plus there's a new start page that can be customized with wallpapers and sections that include Reading List and iCloud Tabs, which makes Safari more tailored to your individual usage needs.

Tabs have been redesigned, there's a built-in language translation feature, Chrome and Firefox Extensions can be ported to Safari, and YouTube supports 4K video playback. There's also an option to choose which sites an extension works with for greater privacy. Speaking of privacy, a new Privacy Report feature lets users know the trackers Safari is blocking when you visit websites.

Messages is more similar to the Messages app on iOS with support for pinned conversations, mentions, inline replies, and Memoji creation, plus the built-in search feature has been overhauled to make it easier to find links, photos, and conversations in the app.

Apple redesigned the Maps app to add support for Look Around, indoor maps, and Guides, which are lists of notable attractions, restaurants, and more created by trusted sources. Maps can also be used to generate directions for cycling routes and electric vehicle trips that can be sent to iPhone, and shared ETA updates are now viewable on the Mac.

Photos includes a better Retouch tool, Apple Music's For You section has been replaced with a Listen Now section, HomeKit Secure Video cameras support Face Recognition and Activity zones, and Siri can answer a wider range of questions than before.

In the future, the macOS Big Sur App Store will help users better understand privacy practices with clear info on the information that an app collects, and after installing macOS Big Sur, you'll see faster updates that begin in the background and then finish more quickly to make it easier to keep your Mac up to date.

Apple in the third beta of macOS Big Sur changed the battery icon for the Battery section in System Preferences, refining the design to make it look more clean and streamlined. There update also brought a new design for the Music app icon (it's red), and some color changes to the buttons and icons inside the music app.

batteryhealthbigsur
For more on everything that's new in macOS Big Sur, make sure to check out our roundup.

Update: Today's macOS Big Sur beta adds support for the new 2020 iMac models.

Related Forum: macOS Big Sur

Popular Stories

AirPods Pro 3 Mock Feature

AirPods Pro 3 Just Months Away – Here's What We Know

Friday April 18, 2025 5:16 am PDT by
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...
CarPlay Hero

Apple Releases Wireless CarPlay Fix

Wednesday April 16, 2025 11:28 am PDT by
If you have been experiencing issues with wireless CarPlay in your vehicle lately, it was likely due to a software bug that has now been fixed. Apple released iOS 18.4.1 today, and the update's release notes say it "addresses a rare issue that prevents wireless CarPlay connection in certain vehicles." If wireless CarPlay was acting up for you, updating your iPhone to iOS 18.4.1 should...
iphone 16 pro models 1

17 Reasons to Wait for the iPhone 17

Thursday April 17, 2025 4:12 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we often get rumored features months ahead of launch. The iPhone 17 series is no different, and we already have a good idea of what to expect from Apple's 2025 smartphone lineup. If you skipped the iPhone...
Beyond iPhone 13 Better Triad

Apple's 20th Anniversary iPhone May Finally Go All Screen

Tuesday April 15, 2025 6:31 am PDT by
Apple is preparing a "bold" new iPhone Pro model for the iPhone's 20th anniversary in 2027, according to Bloomberg's Mark Gurman. As part of what's being described as a "major shake-up," Apple is said to be developing a design that makes more extensive use of glass – and this could point directly to the display itself. Here's the case for Apple releasing a truly all-screen iPhone with no...
maxresdefault

iPhone 17 Pro Launching Later This Year With These 12 New Features

Sunday April 13, 2025 7:52 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Subscribe to the MacRumors YouTube channel for more videos. Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and ...
iOS 19 Roundup Feature

iOS 19 Will Add These New Features to Your iPhone

Tuesday April 15, 2025 7:37 am PDT by
The first iOS 19 beta is less than two months away, and there are already a handful of new features that are expected with the update. Apple should release the first iOS 19 beta to developers immediately following the WWDC 2025 keynote, which is scheduled for Monday, June 9. Following beta testing, the update should be released to the general public in September. Below, we recap the key...
top stories 2025 04 19

Top Stories: iPhone 17 Pro Rumors, CarPlay Bug Fix, and More

Saturday April 19, 2025 6:00 am PDT by
This week saw rumor updates on the iPhone 17 Pro and next-generation Vision Pro, while a minor iOS 18.4.1 update delivered not just security fixes but also a fix for some CarPlay issues. We also looked ahead at what else is in Apple's pipeline for the rest of 2025 and even the 20th-anniversary iPhone coming in 2027, so read on below for all the details on these stories and more! iPhone 17 ...
tvOS 18 Thumb 1

Apple Releases tvOS 18.4.1

Wednesday April 16, 2025 10:04 am PDT by
Apple today released tvOS 18.4.1, a minor update to the tvOS 18 operating system that came out last September. tvOS 18.4.1 comes two weeks after Apple released tvOS 18.4, and it is available for the Apple TV 4K and Apple TV HD models. tvOS 18.4.1 can be downloaded using the Settings app on the ‌Apple TV‌. Open up Settings and go to System > Software Update to get the new software....
Apple TV Plus Feature 2 Magenta and Blue

Apple TV+ Available at Significantly Lower Price Until Next Week

Friday April 18, 2025 11:42 am PDT by
Apple TV+ is currently available at a much lower price than usual, but time is running out if you want to take advantage of the offer. In the U.S., new and qualified returning customers can subscribe to Apple TV+ for just $2.99 per month, for three months. Afterwards, regular pricing of $9.99 per month applies. The offer is available in the Apple TV app, and at tv.apple.com, through April...

Top Rated Comments

tkermit Avatar
61 months ago
ugh, they still haven't gotten rid of that stupid hover effect where the background and shadow of a title bar will only appear after mousing over it for a second or two (or scrolling) in apps like Finder, Disk Utility and TextEdit (in plain text mode). The UI has become super busy when moving your cursor over elements in a way that is very reminiscent of Windows. Scott Forstall would have had a word to say about that.



Attachment Image

Attachment Image
Score: 6 Votes (Like | Disagree)
Will Sigmon Avatar
60 months ago
Finally available on my 2020 iMac! Installing soon - will report back.
Score: 6 Votes (Like | Disagree)
gregsapphire Avatar
60 months ago
Hey All!

Just wanted to update you on progress of iMac 2020 install. After a lot of trying I was able to get it installed.

My troubleshooting(not something you have to do but can try:

* I went into Disk Utility and ran first aid on everything I could. Did this in recover mode and from normal app.
* In recover mode and checked that secure boot was turned on
* In finder I searched "macOS" under this Mac. Found and deleted the installer(new installer, but later found Apple pushed a slightly newer version a few hours ago)
* Unenrolled myself from the developer program and re-enrolled after
* Double checked that macOS installer was deleted again
* Ran first aid on disks again to be safe
* Under "Energy Saver" turned Prevent computer from sleeping on and set "Turn display off after" to Never so the display and computer wouldn't go to sleep after starting the process from scratch again.

No you don't have to do all of this but I tried all of this and it ended up working. One thing I noticed was earlier on it would download about 20 to 30% of the download consistently and then it stopped every 10 seconds and then download it again and then stopped again. After I did everything above it consistently downloaded the entire update with no issues and I went through the Installer process. The when the installer was up and running I checked the version of it and it had changed from earlier versioner which made me feel more confident on proceeding for the 4th time.

Hope some of this helps. If you need more assistance let me know. Best of luck!
Score: 6 Votes (Like | Disagree)
sniffies Avatar
61 months ago
Finally!! Beta 5 was getting buggier and buggier by the day.
Score: 5 Votes (Like | Disagree)
macintoshmac Avatar
61 months ago
Build number 20A5364e.
Score: 5 Votes (Like | Disagree)
tywebb13 Avatar
61 months ago

Want to install this on my 2020 iMac, except when I install the profile I get...


"The requested version of macOS is not available." which is fun. That is with the beta utility installed and active.
I think beta 6 is so far only available via delta update. The full installer isn’t available yet. Don’t know if it will be, but I expect that it will be. Maybe just wait a bit longer and see. It is considerably bigger than the delta update, so maybe it is taking apple longer to get it on their servers.
Score: 4 Votes (Like | Disagree)