Apple Releases macOS Sequoia 15.1.1 With Security Fixes

Apple today released macOS Sequoia 15.1.1, a minor update for the macOS Sequoia operating system. The 15.1.1 update comes three weeks after Apple released the macOS Sequoia 15.1 update.

macOS Sequoia Night Feature
Mac users can download the ‌macOS Sequoia‌ update by using the Software Update section of System Settings.

According to Apple's release notes, macOS Sequoia 15.1.1 includes security fixes.

Details on the features that are included in macOS Sequoia can be found in our roundup.

Related Forum: macOS Sequoia

Popular Stories

Apple Logo Zoomed

Tim Cook Teases Plans for Apple's Upcoming 50th Anniversary

Thursday February 5, 2026 12:54 pm PST by
Apple turns 50 this year, and its CEO Tim Cook has promised to celebrate the milestone. The big day falls on April 1, 2026. "I've been unusually reflective lately about Apple because we have been working on what do we do to mark this moment," Cook told employees today, according to Bloomberg's Mark Gurman. "When you really stop and pause and think about the last 50 years, it makes your heart ...
wwdc sans text feature

Apple Rumored to Announce New Product on February 19

Thursday February 5, 2026 12:22 pm PST by
Apple plans to announce the iPhone 17e on Thursday, February 19, according to Macwelt, the German equivalent of Macworld. The report, citing industry sources, is available in English on Macworld. Apple announced the iPhone 16e on Wednesday, February 19 last year, so the iPhone 17e would be unveiled exactly one year later if this rumor is accurate. It is quite uncommon for Apple to unveil...
Finder Siri Feature

Why Apple's iOS 26.4 Siri Upgrade Will Be Bigger Than Originally Promised

Friday February 6, 2026 3:06 pm PST by
In the iOS 26.4 update that's coming this spring, Apple will introduce a new version of Siri that's going to overhaul how we interact with the personal assistant and what it's able to do. The iOS 26.4 version of Siri won't work like ChatGPT or Claude, but it will rely on large language models (LLMs) and has been updated from the ground up. Upgraded Architecture The next-generation...
iOS 26

iOS 26.3 and iOS 26.4 Will Add These New Features to Your iPhone

Tuesday February 3, 2026 7:47 am PST by
While the iOS 26.3 Release Candidate is now available ahead of a public release, the first iOS 26.4 beta is likely still at least a week away. Following beta testing, iOS 26.4 will likely be released to the general public in March or April. Below, we have recapped known or rumored iOS 26.3 and iOS 26.4 features so far. iOS 26.3 iPhone to Android Transfer Tool iOS 26.3 makes it easier...
iphone 17 pro dark blue 1

iPhone 18 Pro Max Rumored to Deliver Next-Level Battery Life

Friday February 6, 2026 5:14 am PST by
The iPhone 18 Pro Max will feature a bigger battery for continued best-in-class battery life, according to a known Weibo leaker. Citing supply chain information, the Weibo user known as "Digital Chat Station" said that the iPhone 18 Pro Max will have a battery capacity of 5,100 to 5,200 mAh. Combined with the efficiency improvements of the A20 Pro chip, made with TSMC's 2nm process, the...

Top Rated Comments

brerlappin Avatar
16 months ago
Hopefully they fixed the M1 MacBook's grainy camera bug.
Score: 7 Votes (Like | Disagree)
Harry Haller Avatar
16 months ago

When you have so many customers it's worth spreading the downloads over several days or even weeks.
Do you want to wait weeks for security fixes?
Score: 6 Votes (Like | Disagree)
timmodugdale Avatar
16 months ago
I don't know why it is so hard for Apple to deliver updates.
Score: 5 Votes (Like | Disagree)
noraa Avatar
16 months ago
I wonder what happened to the "rapid security response" update mechanism that Apple implemented in Ventura and iOS/iPadOS 16. I feel like it's only been used once, maybe twice, and I would think this kind of security fix update would be a perfect fit for the rapid response mechanism.
Score: 4 Votes (Like | Disagree)
tywebb13 Avatar
16 months ago
i'm on 15.2 beta 3 already so probably won't install 15.1.1 but will still download the 15.1.1 full installer to make bootable usb

presumably the next 15.2 beta will have the security fixes

would you describe installing 15.1.1 over the top of 15.2 beta 3 an upgrade or downgrade?

downgrade in terms of version number, but 15.1.1 came out after 15.2 beta 3 with security fixes, so upgrade in terms of security.

but then you lose the extra ai stuff in 15.2 so i'll wait for next beta - you have to kind of agree to live on the wild side when installing betas, accepting more bugs/vulnerabilities
Score: 3 Votes (Like | Disagree)
Adora Avatar
16 months ago

The install on my m1 mbp Looked suspicious with several Stuck Progress Bars and black screens for minutes. Cant they make that less creepy?
That's really annoying with those many progress bars that doesn't say anything and you don't know what's happening. They mostly don't even show any percentage or time remaining and move very strange. I have this with every beta update.
Score: 3 Votes (Like | Disagree)