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

apple welcome home event

Apple Product Launch Announced for October 13: 'Welcome Home'

Thursday October 8, 2026 9:04 am PDT by
Apple today announced an upcoming product launch that will take place on Tuesday, October 13. We are expecting Apple's announcement to focus on new smart home products, including the long-rumored smart home hub, a new Apple TV 4K, and a refreshed HomePod mini. Subscribe to the MacRumors YouTube channel for more videos. The home hub is an all-new device that's like a cross between an iPad and...
MacBook Pro Ultra Feature 1

Apple to Launch Touchscreen OLED MacBook Pro and OLED iPad mini on October 27

Thursday October 8, 2026 1:31 pm PDT by
Apple will introduce new OLED touchscreen MacBook Pro models and an OLED iPad mini "on or around" Tuesday, October 27, reports Bloomberg. The launch will also include an M6 14-inch MacBook Pro and an M6 iMac. The October 27 follows Apple's October 13 debut of a new smart home hub, a revamped Apple TV 4K, and a refreshed HomePod mini. Earlier this month, MacRumors reported that Apple would do ...
October 13 Welcome Home Event Image

Apple's October 13 Launch: What's Coming

Thursday October 8, 2026 3:59 pm PDT by
Apple is planning to introduce new products on Tuesday, October 13, Apple marketing chief Greg Joswiak announced today. It won't be a traditional Apple event, but Apple has invited some members of the media to New York City to get some hands-on time with whatever's introduced. Subscribe to the MacRumors YouTube channel for more videos. Those of us not invited to the New York Experience are...

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
New Apple TV 4K, HomeView, and HomePod Mini: 16 Details Just Leaked
New Apple TV 4K, HomeView, and HomePod Mini: 16 Details Just Leaked
2 hours ago
New Entry-Level iPad Not Expected Until Early 2027
New Entry-Level iPad Not Expected Until Early 2027
6 hours ago
Apple Plans Major iPhone Duo Retail Showcase, But Supply Will Be Limited
Apple Plans Major iPhone Duo Retail Showcase, But Supply Will Be Limited
6 hours ago
Apple TV 4K Getting A19 Chip and a Potentially Easier-to-Find Siri Remote
Apple TV 4K Getting A19 Chip and a Potentially Easier-to-Find Siri Remote
7 hours ago
New Mac Mini and Mac Studio Receive Up to $200 Price Cuts at Amazon
New Mac Mini and Mac Studio Receive Up to $200 Price Cuts at Amazon
7 hours ago
Apple HomeView Smart Hub to Ship in Mid-November in Four Colors
Apple HomeView Smart Hub to Ship in Mid-November in Four Colors
6 hours ago
New Apple TV 4K and HomePod Mini to Ship on October 30
New Apple TV 4K and HomePod Mini to Ship on October 30
7 hours ago
AirPods Max 2 Available for $429 in All Colors on Amazon
AirPods Max 2 Available for $429 in All Colors on Amazon
8 hours ago
Rumor: Apple to Announce New Partnership With ADT
Rumor: Apple to Announce New Partnership With ADT
19 hours ago
AirPods 5 vs. AirPods 5 With Wireless Charging Case Buyer's Guide
AirPods 5 vs. AirPods 5 With Wireless Charging Case Buyer's Guide
1 day ago
Accessory Deals This Weekend: Save on TVs, Headphones, and Smart Home Gear
Accessory Deals This Weekend: Save on TVs, Headphones, and Smart Home Gear
1 day ago
Apple's All-New Home Hub Will Be Revealed October 13: What to Expect
Apple's All-New Home Hub Will Be Revealed October 13: What to Expect
1 day ago
Apple Announcing HomePod Mini 2 Next Week With These New Features
Apple Announcing HomePod Mini 2 Next Week With These New Features
1 day ago
A New Apple TV 4K is Finally Coming on Tuesday
A New Apple TV 4K is Finally Coming on Tuesday
1 day ago
Top Stories: Apple's 'Welcome Home' Launch on October 13 and More
Top Stories: Apple's 'Welcome Home' Launch on October 13 and More
1 day ago
Apple Stores Will Add Your Name to iPhone Duo's Startup Screen
Apple Stores Will Add Your Name to iPhone Duo's Startup Screen
2 days ago
SpaceX Inches Closer to Becoming a U.S. Carrier
SpaceX Inches Closer to Becoming a U.S. Carrier
2 days ago
Apple Potentially Behind 'HomeView' Trademark Filed Alongside 'homeOS' Last Year
Apple Potentially Behind 'HomeView' Trademark Filed Alongside 'homeOS' Last Year
2 days ago
Mark Your Calendar: Six Important Apple Dates Coming Up This Month
Mark Your Calendar: Six Important Apple Dates Coming Up This Month
2 days ago
MacRumors Giveaway: Win an Apple Watch Series 12 and a Nylon Band From Southern Straps
MacRumors Giveaway: Win an Apple Watch Series 12 and a Nylon Band From Southern Straps
2 days ago
First Apple TV 4K Now 'Vintage' Ahead of New Model Coming on Tuesday
First Apple TV 4K Now 'Vintage' Ahead of New Model Coming on Tuesday
2 days ago
The MacRumors Show: Apple's Smart Home Products Are Coming
The MacRumors Show: Apple's Smart Home Products Are Coming
2 days ago
Apple Shares Fall After News of iPhone 18 Pro Order Cuts
Apple Shares Fall After News of iPhone 18 Pro Order Cuts
2 days ago
Leak Details iPhone Features for Apple's LG Home Accessories
Leak Details iPhone Features for Apple's LG Home Accessories
2 days ago
Prime Day Leftover Deals: AirPods Max 2 for $429, Mac Mini for $779.99, and More
Prime Day Leftover Deals: AirPods Max 2 for $429, Mac Mini for $779.99, and More
2 days ago
Every M5 MacBook Air Now $200 Off on Amazon
Every M5 MacBook Air Now $200 Off on Amazon
2 days ago
Mac Shipments Fall, But Apple Still Gains Ground in Shrinking Market
Mac Shipments Fall, But Apple Still Gains Ground in Shrinking Market
2 days ago
Apple Reportedly Cuts iPhone 18 Pro Orders After Price Hike Dampens Demand
Apple Reportedly Cuts iPhone 18 Pro Orders After Price Hike Dampens Demand
2 days ago
Apple Signs Hiring and Licensing Deal With AI Podcast Startup Huxe
Apple Signs Hiring and Licensing Deal With AI Podcast Startup Huxe
3 days ago
Apple's October 13 Launch: What's Coming
Apple's October 13 Launch: What's Coming
3 days ago