Apple Releases Sixth Beta of macOS Big Sur to Developers [Updated] - MacRumors
Skip to Content

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

iphone duo screen crack in store

Crackgate? iPhone Duo Owners Report Screens Breaking Along the Hinge

Friday October 23, 2026 11:05 am PDT by
Some iPhone Duos are already experiencing hinge issues that cause display cracks, based on photos shared on Reddit and the MacRumors forums. Almost all of the display faults are right along the hinge, and most result in a line of bright pixels across one side of the screen. An iPhone Duo owner in Australia said his device cracked after being opened fewer than 20 times, and there was no...
Apple Creator Studio iWork suite

Apple Pulls Keynote, Pages and Numbers From App Store [Update: Back]

Thursday October 22, 2026 11:01 am PDT by
Apple has temporarily removed Keynote, Pages, and Numbers from the App Store, just after releasing an update that added iPhone Duo support and a new Intelligent Assistant. It is not clear if the apps were removed intentionally, or if it is a bug. Apple has not said when the apps will be reinstated, but if it was in error, they should return soon. Update: The Mac versions are back without...
Apple Music iPod Page Not Found

Apple Music Has a Hidden iPod You Can Play With

Friday October 23, 2026 7:11 am PDT by
Apple Music has a 404 page easter egg on the web: a functional iPod that appears when you load a page that does not exist, such as music.apple.com/macrumors. "Page Not Found," says Apple. "Give this a spin instead." Apple is clever with this. If you navigate to music.apple.com/ipod instead, the page says "Looking for something?" instead of "Page Not Found." The easter egg is only...

Top Rated Comments

80 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)
Will Sigmon Avatar
80 months ago
Finally available on my 2020 iMac! Installing soon - will report back.
Score: 6 Votes (Like | Disagree)
tkermit Avatar
80 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)
macintoshmac Avatar
80 months ago
Build number 20A5364e.
Score: 5 Votes (Like | Disagree)
sniffies Avatar
80 months ago
Finally!! Beta 5 was getting buggier and buggier by the day.
Score: 5 Votes (Like | Disagree)
80 months ago

I had a feeling it would just install the previous beta again if I didn't do this. It's downloading now so I'm pretty sure I'm getting the most recent beta.
Don't forget to check finder for possibly old installer and delete it. As that caused me issues bc the first 2 times today it downloaded and then got stuck.
Score: 4 Votes (Like | Disagree)
Latest Stories
Instagram Launches Apple TV App With Reels and More
Instagram Launches Apple TV App With Reels and More
23 minutes ago
Apple's 'Servant' Copyright Lawsuit Win Upheld on Appeal
Apple's 'Servant' Copyright Lawsuit Win Upheld on Appeal
45 minutes ago
'Arguably Better Than Face ID': the iPhone Duo Touch ID Tip to Try
'Arguably Better Than Face ID': the iPhone Duo Touch ID Tip to Try
5 hours ago
Verizon Apologizes for iPhone Duo Pre-Order Delays, Giving Customers $100 Gift Card
Verizon Apologizes for iPhone Duo Pre-Order Delays, Giving Customers $100 Gift Card
10 hours ago
Skip the Touch ID Scan: Unlock iPhone Duo With Apple Watch
Skip the Touch ID Scan: Unlock iPhone Duo With Apple Watch
10 hours ago
iPhone Duo Fails JerryRigEverything's Dusty Durability Test
iPhone Duo Fails JerryRigEverything's Dusty Durability Test
10 hours ago
Make iPhone Duo Volume Buttons Follow Screen Rotation
Make iPhone Duo Volume Buttons Follow Screen Rotation
13 hours ago
iPhone Duo Teardowns Reveal Two Batteries and More
iPhone Duo Teardowns Reveal Two Batteries and More
14 hours ago
M5 MacBook Air Returns to Prime Day Low With $200 Amazon Discount
M5 MacBook Air Returns to Prime Day Low With $200 Amazon Discount
14 hours ago
Top Stories: Apple 'Pro and Tell' Debut, iPhone Duo Launch, and More
Top Stories: Apple 'Pro and Tell' Debut, iPhone Duo Launch, and More
16 hours ago
Apple Store Pickup System for iPhone Duo Just Went Live Again in U.S. and Canada
Apple Store Pickup System for iPhone Duo Just Went Live Again in U.S. and Canada
17 hours ago
Apple Closes French Stores Ahead of Further Protests
Apple Closes French Stores Ahead of Further Protests
1 day ago
Apple Pushes Back on DOJ Request for More Evidence
Apple Pushes Back on DOJ Request for More Evidence
1 day ago
The iPhone Duo Can Be a Tiny Mac, a Toaster, and a Nintendo DS
The iPhone Duo Can Be a Tiny Mac, a Toaster, and a Nintendo DS
1 day ago
Using an Apple Pencil With the iPhone Duo: What to Know
Using an Apple Pencil With the iPhone Duo: What to Know
1 day ago
Apple Store Pickup for iPhone Duo Starting to Resume But Very Limited
Apple Store Pickup for iPhone Duo Starting to Resume But Very Limited
1 day ago
iPhone Duo Jailbroken on Launch Day
iPhone Duo Jailbroken on Launch Day
1 day ago
Apple Seeds Updated watchOS 27.2 Release Candidate
Apple Seeds Updated watchOS 27.2 Release Candidate
1 day ago
Apple Store in UK Reopens With New Design on iPhone Duo Launch Day
Apple Store in UK Reopens With New Design on iPhone Duo Launch Day
1 day ago
Crackgate? iPhone Duo Owners Report Screens Breaking Along the Hinge
Crackgate? iPhone Duo Owners Report Screens Breaking Along the Hinge
1 day ago
iPhone Duo Brings Back Long Lines at Apple Stores
iPhone Duo Brings Back Long Lines at Apple Stores
1 day ago
The MacRumors Show: iPhone Duo Arrives, Touchscreen MacBooks Next
The MacRumors Show: iPhone Duo Arrives, Touchscreen MacBooks Next
2 days ago
Apple Released iOS 27.1 for iPhone Duo Only
Apple Released iOS 27.1 for iPhone Duo Only
2 days ago
iPhone Duo: Open Two Apps Side by Side and Lock Them As an App Pair
iPhone Duo: Open Two Apps Side by Side and Lock Them As an App Pair
2 days ago
iPhone Duo Launches With Carrier and Accessory Discounts Available
iPhone Duo Launches With Carrier and Accessory Discounts Available
2 days ago
Apple Music Has a Hidden iPod You Can Play With
Apple Music Has a Hidden iPod You Can Play With
2 days ago
iPhone Duo Says 'Hello' to You Personally
iPhone Duo Says 'Hello' to You Personally
2 days ago
iPhone Duo: How to Skip the Swipe Up After Touch ID
iPhone Duo: How to Skip the Swipe Up After Touch ID
2 days ago
Where to Buy iPhone Duo Today: Stores, Pickup, and Wait Times
Where to Buy iPhone Duo Today: Stores, Pickup, and Wait Times
2 days ago
MacBook Neo Helps Apple Outpace Rivals as Market Declines
MacBook Neo Helps Apple Outpace Rivals as Market Declines
2 days ago