Apple has put into circulation macOS 26.4 beta 3 for developersThis new iteration focuses on refining the Mac user experience rather than introducing flashy new features. It arrives slightly later than the third betas of iOS, iPadOS, watchOS, and other operating systems, but maintains the rapid development pace the company has been following this year.
Although many users are primarily looking at iOS and its future advanced features Siri and artificial intelligencemacOS isn't standing still either. Beta 3 of macOS 26.4 continues the work begun in the first two builds, consolidating practical improvements such as battery charging control, adjustments in Safari, and warnings about the future of applications that still rely on Rosetta to function on Apple Silicon devices.
Key new features in macOS 26.4: continuity and practical adjustments
With macOS 26.4, Apple continues to bet on subtle but relevant changes in daily life for Mac users, both in Spain and the rest of Europe. This isn't a revolutionary update, but rather a version that refines existing features and paves the way for more significant changes in the coming months.
Among the additions in this development branch, the new configurable battery charging limitDesigned to extend the lifespan of Mac laptops, this update also brings back a tabbed interface in Safari that many users have missed, and introduces clearer warnings about the upcoming end of support for applications running on Rosetta, which will significantly impact developers and companies that haven't yet fully migrated to Apple Silicon.
All of this comes in a context where Apple has also released betas of iOS 26.4, iPadOS 26.4, watchOS 26.4 and other platforms, just twelve days after the stable versions of iOS and iPadOS 26.3. release schedule This reduces the margin for pauses, indicating that there are still quite a few changes planned for this year's systems in Cupertino.
For now, the download of macOS 26.4 beta 3 is limited to those They are enrolled in the developers program Apple. The company usually waits a few days or weeks before releasing public betas, so most European users will have to wait a little longer if they want to try the new features without using a developer account.
The compilation identified as 25E5223i This is the version corresponding to this third beta of macOS 26.4. From here on, the developers will be the ones who detect minor changes, unexpected return of features, and possible bugs that still need to be ironed out before the final version.
No major revolution in Siri, but with quality of life improvements
While iOS 26.4 and iPadOS 26.4 were expected to bring a more ambitious leap in terms of a Smarter, more personalized SiriOn macOS, the current approach is much more conservative. Apple already announced its plans to strengthen the assistant's capabilities at WWDC 2024, but the first betas of the cycle suggest that major new features could be delayed.
According to the information that has emerged, Apple has reportedly encountered technical complications When it comes to deploying certain artificial intelligence improvements, this could push them to iOS 26.5, future versions of macOS, or even the next numbered generation of the operating systems. In any case, the third beta of macOS 26.4 doesn't bring the profound Siri overhaul that some were hoping to see at this stage.
Although the great transformation of the virtual assistant may take longer than imagined, that doesn't mean that Version 26.4 is just a simple, empty updateOn the contrary: Apple is taking advantage of these betas to incorporate small improvements and fixes that, without making a fuss, impact the everyday use of the Mac.
In the case of iOS, there has been talk, for example, of possible improvements in image generation and smarter web searches linked to Siri, in addition to the arrival of a new package of emojis like the trombone, the treasure chest, or the orcaThese additions are not confirmed for macOS in this specific beta, but they do show where the ecosystem as a whole is heading.
For users who do not participate in the testing programs, the question is whether macOS 26.4 will end up being a turning point Or rather, an intermediate maintenance pause. At Apple's pace, we shouldn't rule out the public version arriving relatively soon, and it will be then that we'll see more clearly how much these changes will impact daily use.
Load limit, Safari tabs, and Rosetta notifications
One of the most tangible changes that can already be tested in macOS 26.4 beta is the system of Configurable battery charging limit between 80% and 100%The idea is simple: to allow the user to set a limit beyond which the Mac stops charging, helping to reduce long-term battery wear, something especially useful for those who often work with their laptop plugged into the mains.
Also returning compact tab design in SafariA navigation interface that had disappeared is now back for those who prefer to make better use of the space in the tab bar. This type of visual adjustment may seem minor, but for users who spend many hours in the browser, it makes a difference in comfort.
Another key point of the update is the warning that macOS 26.4 displays when opening a application that still depends on RosettaEach time an app that needs the translation layer between Intel and Apple Silicon is launched, the system warns the user that support will end in a future version of macOS.
Apple had already announced that Rosetta will cease to be compatible at the end of 2027And with these warnings, Microsoft aims to put more pressure on developers to natively adapt their applications to its processors. For businesses and professionals still using older software, this reminder can serve as a wake-up call to start planning migrations.
The company has also tried to bring order to more subtle issues, such as the well-known corner radius failurewhere the resize pointer didn't follow the actual shape of the window. At the time, Apple marked this problem as fixed in macOS 26.3, but later amended the release notes and listed it as a "known issue," so its fix is ​​still present in these 26.4 betas.
Installing macOS 26.4 beta 3 for developers
For now, the new macOS beta is available. For registered developers onlyThose who are part of the program can install macOS 26.4 beta 3 through the system settings themselves, without the need for external profiles as was the case in the past.
Before launching, it is recommended that any professional or advanced enthusiast who is going to try this beta in Spain or another European country make a full backupespecially if you plan to install it on your primary Mac. Trial versions may contain bugs that affect stability or critical applications for daily work.
The usual process for installing macOS 26.4 Developer Beta 3 involves going to System Settings > General > Software Updateand from there manage the beta options. Apple centralizes everything in this section, simplifying access to the different test branches.
Within the update screen, you need to tap on the "i" icon next to the section for Beta updatesIn the drop-down menu that appears in the upper right corner, you can select the specific option for macOS Tahoe Developer Beta, which is the internal name associated with this version 26.4.
Once the appropriate channel has been selected and confirmed with the "Ready" button, the system will look for build 25E5223i It will then allow for download and installation, following the usual procedure for any macOS update. From there, it's time to test it, note any bugs, and, in the case of developers, report the information to Apple so they can finalize the version.
With this third beta of macOS 26.4, Apple continues to refine an update that, without much fanfare, It is gradually adding discrete improvements in autonomy, stability and compatibility.This also puts a clearer end date on software that still relies on Rosetta. For European Mac users, the result is a system that is being refined step by step while preparing the ground for more profound changes in future versions.
