Apple has officially rolled out macOS 15.4, the fourth major update to its Sequoia operating system, and it’s more feature-rich than the previous incremental releases. Focused on usability and personalization, macOS 15.4 introduces enhancements across key areas like Mail, emoji usage, and audio quality for premium headphones. For Mac users looking to get more efficiency and personality from their machines, this update offers a solid set of improvements.
One of the headline changes in macOS 15.4 is a revamped Mail experience. The native Mail app now uses on-device categorization to sort emails into four distinct folders: Primary (personal and urgent messages), Transactions (receipts and confirmations), Updates (social media and news alerts), and Promotions (marketing content and offers). This sorting system aims to reduce inbox clutter and help users focus on the emails that matter most in the moment. Additionally, a new digest view groups messages from the same business or sender, allowing for quicker scanning and better context without digging through your inbox.
Another significant addition is the expansion of Apple Intelligence language support. With this update, Apple is broadening its language capabilities to include Chinese, French, German, Italian, Japanese, Korean, Brazilian Portuguese, and Spanish. English has also been localized for Singapore and India. These additions improve Siri functionality, dictation, and other intelligence-based features across the system, making them more accessible to a wider global audience.
macOS 15.4 also caters to users who enjoy personal expression, especially when it comes to emojis. Seven new emoji characters—such as a tired face with bags under the eyes, a shovel, a harp, and a leafless tree—have been added, following their introduction by the Unicode Consortium. For those wanting even more variety, the Genmoji feature has been made easier to access. Users can now create their own custom emojis, which function seamlessly within Apple’s ecosystem. A new button placement in the keyboard makes the feature more discoverable and user-friendly.
For audiophiles, there’s also good news. macOS 15.4 finally enables lossless audio support for AirPods Max. However, to take advantage of this upgrade, you’ll need to use a USB-C cable to connect the headphones directly to your Mac. It’s a niche addition, but a notable one for users invested in high-fidelity sound playback on Apple hardware.
macOS 15.4 arrives alongside other platform updates including iOS 18.4, iPadOS 18.4, watchOS 11.4, tvOS 18.4, and visionOS 2.4. As always, some features may be limited to newer devices or specific regions.
If you rely on Mail, enjoy customizing your communication with emojis, or use AirPods Max for serious music sessions, macOS 15.4 is a worthwhile update. It balances functionality and fun, while continuing Apple’s push toward more personalized and intelligent software experiences for Mac users.
