Your MacBook will now warn you when you plug in a slow charger. Apple quietly introduced this feature in macOS Tahoe 26.4.
The “Slow Charger” warning can help you quickly identify underpowered adapters that could slow down charging or affect your MacBook’s performance during use.
macOS Tahoe 26.4, which Apple released Tuesday, brings several noticeable improvements and changes to the Mac’s operating system. While not a massive overhaul, this is exactly the kind of point update Tahoe needs right now.
Let’s take a look at what’s new in macOS Tahoe 26.4.
Apple updated iOS, macOS and iPadOS with a Background Security Improvements patch on Tuesday, the first time the company has used its new system for securing user devices. This patch fixes a flaw in WebKit that could have allowed malicious websites to access data from other websites.
Background Security Improvements are installed without requiring the iPhone, Mac or iPad user to do anything — or even be aware of the update.
iOS 26.3.1 is ready to be installed on your iPhone starting Wednesday. Mac users got macOS Tahoe 26.3.1 at the same time. The new versions include bug fixes — which are always welcome. And iPad users can install iPadOS 26.3.1, too.
In addition, all three system software updates bring support for the Apple Studio Display monitors that just launched.
With macOS Tahoe 26.4, Apple will finally bring a long-requested feature to Macs: a battery charge limiter. This will allow you to select the maximum charge level for your MacBook’s battery.
iPhones have offered a similar battery health feature for a few years now, making its absence on the Mac all the more noticeable.
iOS 26’s Liquid Glass user interface brings dramatic change to the iPhone, so it’s no surprise that some people hate it. If the new translucent look is just not for you, you can tweak or turn off Liquid Glass in iOS 26.2. And it’s easy.
Plus, you will find the same settings in macOS Tahoe 26.2 and iPadOS 26.2, so you can turn off Liquid Glass on all your Apple devices if you like. Here’s how.
Apple ran the first test of its new Background Security Improvements feature on Tuesday. Registered developers can access the initial security patch, though it does nothing aside from test the new system.
The eventual goal is enable Apple to distribute security patches separated from software updates.
macOS 26.2 beta 2 adds a new Edge Light feature to improve the look of your video calls. As the name indicates, it will add a white light to the edges of your Mac’s display while you’re on a video call.
It’s like a built-in ring light that should improve your appearance when hopping on FaceTime to chat with friends or colleagues.
When Apple needs to install a security patch onto an iPhone, iPad or Mac, it now does so without requiring the user to do anything — or even be aware of the update. The new Background Security Improvements feature delivers “additional security protections between software updates,” according to Apple.
It’s a feature of iOS 26.1, iPadOS 26.1 and macOS 26.1, but users have the option to deactivate it.
Apple seeded the release candidates of iOS 26.1 and macOS Tahoe 26.1 to developers and the public on Tuesday. This is usually the final step before new versions launch — which should happen next week. The highlight is a new setting that makes the controversial Liquid Glass UI less transparent.
Release candidates for iPadOS 26.1, watchOS 26.1, tvOS 26.1 and visionOS 26.1 also went out to on Tuesday.
iOS 26.0.1 and macOS Tahoe 26.0.1 launched on Monday, bringing a range of bug fixes to the major operating system upgrades introduced earlier this month. That includes taking care of multiple issues in the new iPhone 17 series — some quite serious.
In addition, iPadOS 26.0.1, watchOS 26.0.2, tvOS 26.0.1 and visionOS 26.0.1 all went to users on Monday.
Apple is finally ready to release iOS 26, iPadOS 26, watchOS 26 and macOS Tahoe to the public. After initially showcasing these operating systems at WWDC25 this spring, the company will release the first stable build on September 15.
So when will iOS 26 actually land on your compatible iPhone? With all the new features packed in, you’ll want to be first in line to grab the update. Here’s when iOS 26, iPadOS 26, watchOS 26 and macOS Tahoe go live in your region.
Following months of beta testing since WWDC25, Apple is finally ready to release iOS 26, iPadOS 26 and macOS Tahoe to the public. These operating systems finally have a release date.
The updates will start rolling out as early as September 15, just a week after Apple’s Awe Dropping event.