Apple Releases macOS Big Sur 11.6.7 With Mail App Fix - MacRumors
Skip to Content

Apple Releases macOS Big Sur 11.6.7 With Mail App Fix

Apple today released macOS Big Sur 11.6.7, a minor update to the macOS Big Sur operating system that preceded the current macOS Monterey release. The update is being made available to those with Macs that are still running the Big Sur operating system.

macOS Big Sur Feature Triad
The new ‌‌‌‌‌‌‌macOS Big Sur‌‌‌‌‌‌ 11.6.7 update can be downloaded to all eligible Macs using the Software Update section of System Preferences.

According to Apple's release notes, the update addresses an issue that could cause Mail and apps like Microsoft Outlook to be unable to open attachments if the app required to open the file is already running.

Related Forum: macOS Big Sur

Popular Stories

Apple Card iPhone 16 Pro Feature

Apple Card Promo to Offer Free AirPods Pro 3

Friday May 15, 2026 8:59 am PDT by
Starting as early as next week, customers who sign up for an Apple Card at Apple's retail stores in the U.S. will receive $249 cash back when they purchase AirPods Pro 3, according to Bloomberg's Mark Gurman. The promotion has yet to be officially announced by Apple, so exact terms and conditions are not available at this time. AirPods Pro 3 are priced at $249 in the U.S., so customers who...
Apple WWDC25 iOS 26 CarPlay Light mode 250609

Six Popular iPhone Apps Now Available on CarPlay

Thursday May 14, 2026 9:10 am PDT by
Apple's CarPlay system for accessing iPhone apps on a vehicle's dashboard screen has received six popular apps in recent weeks: ChatGPT, Perplexity, Grok, Google Meet, WhatsApp, and the indie artist streaming platform Audiomack. Make sure you have the latest version of each app and they will automatically appear on CarPlay. ChatGPT Starting with iOS 26.4, CarPlay supports voice-based...
ipad mini 7 blue

OLED iPad Mini: Release Date, Pricing, and What to Expect

Thursday May 14, 2026 5:08 am PDT by
According to the latest rumors, Apple is close to launching its next-generation iPad mini. So what should we expect from the successor to the iPad mini 7 that Apple released over a year ago? Read on to find out. Processor and Performance Apple is working on a next-generation version of the iPad mini (codename J510/J511) that features the A19 Pro chip, according to information found in code...

Top Rated Comments

GubbyMan Avatar
51 months ago
It's good to see Apple pushing updates for older versions now that I'll be stuck on Monterey (2016 MBP). I still think they should update Macs to the latest OS for more than 5 major OS versions but at least my MacBook will be supported for a few more years. Also Microsoft isn't doing any better... :rolleyes:
Score: 10 Votes (Like | Disagree)
Cognizant. Avatar
51 months ago

It's so weird how Apple's OS often breaks 3rd party software. I never hear about Microsoft's OS doing the same thing.
Microsoft released updates that have literally wiped people's entire hard drives.
Score: 8 Votes (Like | Disagree)
pdaholic Avatar
51 months ago
I've got a 2013 MacBook Pro, and I've been itching to get a new one, but this one is running smoothly and just won't die! Glad to have an update to Big Sur, the last OS supported by this nearly 10 year old Mac.
Score: 7 Votes (Like | Disagree)
51 months ago

LOL I hope that was being facetious.

Microsoft broke 120,000 desktop seats across 5000 separate companies due to a bug in IE9 download prompting. This was open for 9 years in Connect until they shut that down and they never even looked at it despite being a MS Gold Partner at the time. The bug went away when they replaced IE with Edge finally.
oh my Gosh. Internet Explorer version 9 was so long ago. I think Netscape was still around.

Give Microsoft a break. Will you?
Score: 6 Votes (Like | Disagree)
51 months ago

oh my Gosh. Internet Explorer version 9 was so long ago. I think Netscape was still around.

Give Microsoft a break. Will you?
Why should he? He responded to a post stating only Apple has these issues. Which is obviously nonsense.
Score: 5 Votes (Like | Disagree)
iHorseHead Avatar
51 months ago

It's good to see Apple pushing updates for older versions now that I'll be stuck on Monterey (2016 MBP). I still think they should update Macs to the latest OS for more than 5 major OS versions but at least my MacBook will be supported for a few more years. Also Microsoft isn't doing any better... :rolleyes:
I know how you feel. I had MacBook from early 2008 and it was as expensive as my M1 MacBook Air. It lost the support after 4 years. Leopard, Snow Leopard and Lion. I went to Apple Discussion's to complain and they just told me to buy a new Mac.

Also, Microsoft is doing a great job. Windows is always supported for longer than Mac. Your 2016 MBP could even run Windows 11.
Score: 4 Votes (Like | Disagree)