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It happens every time: Just before major OS releases, the tech web is flooded with how-to and tips articles. The MacVoices Live! panel looks at why and how you can benefit, including how that flood can offer guidance when new operating systems arrive. The discussion then turns to the Mac App Store allowing developers to […]
Apple is working on an AI server that would use Apple’s high-performance M-series Ultra chips found in Mac desktops. The potential product’s expected release in 2029 would mark the first Apple server to hit the market in nearly two decades—and could capitalize on the surging popularity of Apple hardware among AI developers.
The enterprise server would come in two configurations that include either two or four of Apple’s future M8 Ultra chips, according to The Information. The project reportedly received support from new Apple CEO John Ternus when it began a year ago, back when Ternus led Apple’s hardware engineering efforts.
This revelation coincides with booming sales for Apple’s Mac mini and Mac Studio as AI developers and companies snap up the Mac computers to run AI workloads. The popularity of such computing devices that rely on Apple’s M-series Ultra chips has undoubtedly encouraged Apple’s pursuit of an enterprise server using the same chips.
Apple released macOS 27 Golden Gate on September 14, 2026, but development hasn’t stopped. Just two days later on September 16, Apple issued the first developer beta of macOS 27.2, beginning testing of the operating system’s next major point update. Yes, that’s macOS 27.2, not macOS 27.1.
The macOS 27.2 beta gives developers and testers early access to Apple’s latest fixes, refinements and any features that weren’t ready for the initial Golden Gate release.
However, as with any beta software, it may introduce bugs, compatibility problems and poorer battery life so we recommend caution if you wish to install it.
Here’s everything you need to know about the latest macOS beta, including what’s new, when the next public beta is likely to arrive and whether you should install it.
What’s the latest macOS beta?
Apple offers two beta streams: a developer beta and a public beta. The public beta allows enthusiasts and early adopters to test upcoming changes before they are released to everyone. You need to join Apple’s Beta Software Program to access it.
The latest Mac beta is macOS 27.2 beta 1, which Apple released to registered developers on September 16, 2026. It arrived two days after the public release of macOS 27 Golden Gate.
The corresponding macOS 27.2 public beta is expected shortly. Public betas usually follow developer betas, although Apple does not guarantee a particular schedule.
macOS 27 Golden Gate beta version tracker
Apple released macOS 27.2 Golden Gate Developer Beta on September 16, 2026.
The macOS 27.2 Golden Gate Public Beta should be released sometime the same week; new versions are usually released a day or two after the new developer beta.
macOS 26 Tahoe beta: Apple may continue updating macOS 26 Tahoe with security and maintenance releases, but macOS 27 is now the current operating system and the focus of Apple’s beta program.
macOS 27 Beta timeline
Release
Date
Beta 1
June 8, 2026
Beta 2
June 22, 2026
Beta 3
July 6, 2026
Beta 3 v.2
July 13, 2026
Beta 4
July 20, 2026
Beta 5
August 10, 2026
Beta 6
August 17, 2026
Beta 7
August 24, 2026
Beta 8
August 31, 2026
Release Candidate 1
September 9, 2026
Public Beta 1
July 13, 2026
Public Beta 2
July 22, 2026
Public Beta 3
August 11, 2026
Public Beta 4
August 17, 2026
Public Beta 5
August 24, 2026
Public Beta 6
August 31, 2026
Final Release
September 14, 2026
macOS 27.2 developer beta 1
September 16, 2026
What’s new in the latest beta?
New features in macOS 27.
Foundry
Apple has not announced any major consumer-facing additions in macOS 27.2 beta 1. The following changes are expected though:
Bug fixes and performance improvements: Addressing issues in the first release of macOS 27.
Additional Siri AI languages: Apple has said the Siri AI will expand to French, Japanese, Korean, Portuguese and Spanish in October.
Automatic password changes: The promised feature that automatically changes compromised passwords has not yet been implemented, but it could arrive in macOS 27.2..
Notify Me in Safari: The Safari feature that monitors webpages may arrive in the beta of macOS 27.2.
We’ll update this section as changes are discovered.
Installing the macOS beta lets you test Apple’s next round of features, fixes and refinements before their public release. Most Mac users should remain on the standard version of macOS 27, particularly if they rely on their Mac for work.
Install if…
You need to test apps
You want early access to new features
You have a secondary Mac available
Wait if…
This is your primary work machine
You rely on niche or specialist software
Stability is critical to your workflow
Who are you
Should you install?
A developer testing apps
Consider the developer beta
An enthusiast with a spare Mac
Consider the public beta
General user with one Mac
Stay on macOS 27
What are the risks of installing beta software?
Installing pre-release software on a primary device carries several risks.
System instability: Performance problems, freezes, crashes, and other unexpected behavior are common during beta testing.
App failures: Third-party applications may crash, behave unpredictably, or stop working entirely.
Hardware strain: Early beta builds can increase battery drain and cause Macs to run hotter than usual.
Data loss: Software bugs may corrupt files, and downgrading to a stable version often requires a complete system reset.
Safety precautions and best practices
If you decide to install the beta, take the following precautions:
Use a secondary device: Avoid installing beta software on your primary Mac or on any machine used for critical work.
Create a full backup: Use Time Machine to create a complete backup before upgrading so you can restore your Mac if something goes wrong. Note that this needs to be a Time Machine backup from before the beta was installed and you will lose anything saved subsequently.
Check storage space: Make sure you have at least 15GB of free storage available before beginning the installation.
How to install the macOS beta
Foundry
The process for installing a macOS beta depends on whether you are seeking the Developer Beta or the Public Beta. Apple simplified this process a few years ago, removing the need for a paid developer account to access early builds.
You will need to register your account either as a public beta tester or as a developer in order to enable beta updates on your Mac.
To install the beta follow these steps:
Back up your Mac: Before installing any pre-release software, it is critical to prepare your Mac to avoid data loss. Beta software is inherently unstable and can cause crashes or app compatibility issues.
Register your account either as a public beta tester or as a developer in order to enable beta updates on your Mac: For the Public Beta: Visit the Apple Beta Software Program website, sign in with your Apple ID, and agree to the terms. For the Developer Beta: Register as an Apple Developer on Apple’s website, download the Apple Developer app from the App Store, sign in with your standard Apple ID, and complete the free registration process.
On the Mac where you wish to install the beta, open System Settings and navigate to General > Software Update.
Click the (i) info button next to Beta Updates.
Enable Beta Updates.
The beta will appear as an available upgrade. Select the macOS beta you want to install (e.g., macOS Public Beta or Developer Beta).
Click Upgrade Now to begin the download and installation.
As long as you are a registered developer or enrolled in the public beta program, when the relevant macOS Beta becomes available, it will also show up on your Mac.
Once you are running the beta, the updates will come through to your Mac automatically; you just need to go to Software Update in System Settings and click to install. See How to install macOS.
How to get a free Apple developer account
If you just want a free Apple Developer account so you can access the beta, you can get this via Xcode or the Apple Developer app in iOS. Here’s how to do it via the Apple Developer app on an iPhone:
If you wish to actually publish applications to the App Store or receive support, you’ll need to pay $99/£79 per year for a paid account. You can compare the free and paid accounts here.
FAQ
1.
Who can run the macOS beta?
Anyone can run the macOS beta, but to do so, you do need to register for either the developer beta, the public beta, or both.
Apple offers both developer and public beta programs for macOS, enabling all interested users to test pre-release versions of the operating system. While both betas provide early access to new features, they cater to different user profiles based on technical expertise and risk tolerance. Beta software tends to be buggy so the more stable public beta version may be preferable, but even that will not be bug-free.
In the past, the developer beta was only available to developers who had paid to join Apple’s Developer Program (which costs $99/£79). However, for a couple of years now, Apple has opened up the developer beta to registered developers with free developer accounts. We explain how to get a free developer account below.
Since 2023, the Developer Beta has been available to anyone who registers as a developer, even if they aren’t a paid-up member of Apple’s Developer Program. As a result, people with a basic free developer account can download the new macOS developer beta (we show you how to register below).
Whether you should download the developer beta if you aren’t a developer is another question. We don’t recommend you install the developer beta if you aren’t a developer. Instead, our recommendation is to use the public beta (the first version of which usually arrives in July).
There are a few differences between the public and developer betas. The public beta is not the same as the beta that is released through the developer program. The public beta typically launches after the developer beta has undergone initial testing and refinement
Developers get updates to their beta first, and possibly more frequently. But you should keep in mind that betas are by nature not stable, and because the public beta comes after the developer beta it could be a little safer to install.
The most significant difference is probably the motive of the testers: Developers usually have the aim of ensuring their apps work when the updated macOS is released to the general public, while public beta testers are essentially helping Apple detect bugs and offering feedback on the features. Because of this, developers may get to test new features not available in the public beta.
If you want to get the public beta the first thing you need to do, if you haven’t already, is join Apple’s beta programs read this for more information: How to become an Apple beta tester.
3.
Is the macOS beta stable?
By its nature, a beta has the potential to be unstable. Therefore, it’s not advised that you install it on a Mac that you rely on. If you have a second Mac that isn’t mission-critical, then install it there. We strongly recommend that you don’t risk all by putting the macOS beta on your primary Mac, especially not in the early days of the beta development.
If you don’t have a second Mac, there are a couple of ways you could run macOS beta on your Mac without running the risk of losing data or finding your Mac stops working:
Update your software: We recommend you have the latest full version of macOS installed, although Apple says that the macOS Developer Beta Access Utility requires macOS 10.8 or later.
Make space: We’d recommend at least 25-30GB of available space because the macOS betas tend to be very large. If you end up requiring more space, read: How to free up space on Mac. Note that we always recommend that you have at least 10% space free on your Mac at any time, so if you don’t have that, expect problems!
Should you come across an error or a bug, you should use the Feedback Assistant app to provide feedback to Apple. Launch the app and follow the appropriate steps, selecting the area about which you’re providing feedback and then any specific sub-area. Then describe your issue in a single sentence, before providing a more detailed description, including any specific steps that reproduce the issue. You’ll also be able to attach other files.
You’ll also have to give permission for the Feedback Assistant app to collect diagnostic information from your Mac.
It won’t always be obvious whether something is a bug or just not as easy to use as you might have hoped. Either way, if your feedback is that something appears to work in an illogical way, Apple will want to know that.
If you are having trouble with a third-party app, you can let Apple know by reporting it through the 3rd-party Application Compatibility category in the Feedback Assistant. However, we’d suggest that you also provide feedback to the app’s developer, who will no doubt be grateful.
6.
Will I be able to update from macOS beta to the final version?
Beta users can move to the finished release once its build is newer than – or equivalent to – the beta installed. Read: How to leave the macOS beta.
7.
Can I talk about the beta publicly?
According to Apple and the license agreement all beta testers must agree to, the beta is “Apple confidential information”. By accepting those terms, you agree not to discuss your use of the software with anyone who isn’t also in the Beta Software Program. That means you can’t “blog, post screenshots, tweet, or publicly post information about the public beta software.”
However, you can discuss any information that Apple has publicly disclosed; the company says that information is no longer considered confidential.
8.
How to downgrade from the macOS beta
You can always revert to an earlier version of macOS, though depending on how you back up, it’s not necessarily a painless process.
Start by making sure the data on your drive is backed up, then erase the drive and install the latest public version of macOS. When you first start up your Mac, you can use the Migration Assistant to import your data from the backup. Here’s a more detailed tutorial on downgrading from the macOS beta and we also have a tutorial on downgrading to an older version of the Mac OS.
9.
Is the beta free to download?
Yes, the macOS beta is free to download for both developers and the general public. Apple offers two distinct tracks for testing pre-release software: the Developer Beta and the Public Beta, both of which are now accessible without a paid subscription.
10.
Can I go back to the stable version?
Yes, you can go back to the stable version of macOS from a beta, but the complexity of the process depends on whether the final version of that software has been released yet.
If you are running macOS 27.2 beta and want to return to the current public release of macOS 27, simply turning off Beta Updates will stop future beta installations, but it will not immediately downgrade the Mac. To return before Apple releases an equivalent public build, you may need to erase the Mac and reinstall macOS, then restore data from a backup made before installing the beta.
11.
Should I install the beta on my main Mac?
Installing a macOS beta on your primary computer is generally not recommended due to the inherent risks of using unfinished software. While beta programs offer early access to new features, they are designed for testing and often contain significant bugs that can disrupt your daily workflow.
12.
Do I need an Apple Developer account to install the beta?
You do not need a paid Apple Developer account to install the macOS beta. While access to developer betas was previously restricted to those paying a $99/£79 annual fee, Apple changed this policy in 2023 to allow anyone with a free developer account to access these builds. Alternatively, you can join the Public Beta program, which is also free and accessible to anyone with a valid Apple ID.
13.
How often are new beta versions released?
New macOS beta versions are typically released every one to two weeks, with the frequency increasing as the final public release date approaches. The beta updates refine features and address bugs identified by testers.
14.
Is the macOS beta safe to install?
The beta is generally safe to test, but it may contain bugs that cause crashes, poor battery life, app compatibility issues, or data loss. Always back up your Mac before installing.
15.
Will my apps work with the macOS beta?
Many apps will work normally, but some third-party software may crash, perform poorly, or not launch at all until developers release updates.
Upgrading macOS doesn’t always go as planned. A new release might slow down your Mac, break essential apps, introduce bugs, or simply change features you rely on. If you’re wishing you could go back to the version you had before, the good news is that you can downgrade macOS.
While reverting a macOS update is generally easier than downgrading an iOS update, it’s not as simple as installing macOS. It is a multi-step process that typically requires wiping your Mac’s internal drive, as Apple does not allow installing an older version of the operating system directly over a newer one.
Because you need to erase your Mac’s internal drive before you can reinstall an older version of the operating system, your data must be backed up first. The exact process depends on whether you created a backup before upgrading macOS.
In this guide, we run through the safest way to revert to an earlier version of macOS, explain what works (and what doesn’t), and help you choose the best method for your situation.
Note: macOS 27 Golden Gate runs only on Macs with Apple silicon, so the main Golden Gate-to-Tahoe instructions in this article are for Apple-silicon Macs. We cover older Intel Macs separately below for readers using this guide to downgrade an earlier version of macOS.
Can I downgrade from macOS Golden Gate to Tahoe?
Yes, it is possible to downgrade from macOS Golden Gate (macOS 27) to macOS Tahoe (macOS 26), but the process is complex and requires you to completely wipe your Mac’s data and install the older version of macOS.
Before you begin, confirm that your Mac can run Tahoe. A Mac cannot install a version of macOS older than the version it originally shipped with. A Mac introduced with Golden Gate may therefore be unable to run Tahoe, even if another Mac with a similar processor can. Check Apple’s compatibility information before erasing anything.
You need the following:
A backup: You will have to wipe your Mac, so you need to have a backup of your data.
The correct macOS version: You need to download the full installer for the version of macOS you want to install.
An external drive: You need to create a bootable installer of macOS. Apple says a 32GB USB drive has more than enough space for any macOS installer; 16GB is sufficient for most older versions.
A reliable internet connection: The installer may need to download firmware and other information specific to your Mac.
Follow these steps, which we explain in more detail below:
Back up your Mac.
Check that your Mac can run macOS Tahoe.
Get the Tahoe installer.
Create a bootable installer.
Shut down your Mac and start it from the bootable installer.
Erase the internal startup volume using Disk Utility.
Install macOS Tahoe.
Set up the Mac and recover compatible files from your backup.
Can I downgrade macOS 27.1 to iOS 27.0 (or macOS 26.7 to 26.6)?
Foundry
Apple issues multiple point updates throughout the year. If something breaks following an update, you may want to return to the previous release—for example, by downgrading from macOS 27.1 to macOS 27.0. The same principle applies to subsequent Golden Gate updates.
Rolling back a point update can be more difficult than downgrading from Golden Gate to Tahoe because you need the full installer for the exact earlier release. Apple generally offers only the latest installer for each major version of macOS, so the macOS 27.0 installer may no longer be available after macOS 27.1 has been released.
However, you may be able to obtain the required version of macOS using Terminal. We detail how to do this below (see step 2). As of September 2026 there were various version installers of Tahoe and Sequoia available using this method.
A Time Machine backup cannot provide the missing installer or reinstall the earlier operating system. If you have access to the appropriate full installer, you can create bootable installation media and follow the erase-and-install process described below. If Apple no longer offers that release and you did not retain its installer, an ordinary downgrade may not be possible.
Downgrading macOS to an earlier version: Step-by-step guide
The steps below will help you revert to macOS Tahoe. Before you start, remember that you must wipe your Mac and perform a clean installation of Tahoe.
Reminder: This will erase your Mac, so make sure you have a backup of important files before continuing.
Before you begin: Back up your Mac
Backing up your Mac is the most critical step before a downgrade because the process requires erasing your startup drive, which removes all locally stored data. If you don’t already have a backup, you will need to make one.
Time Machine is the standard backup method for most Mac users, but restoring data from a newer version of macOS to an older one can present problems. A Time Machine backup made under Golden Gate may contain Photos libraries, Mail databases, settings, application data, and versions of apps that are not compatible with Tahoe.
A backup made while the Mac was still running Tahoe is therefore the safest one to use. However, it won’t contain files created or changed after the upgrade to Golden Gate. If Golden Gate is still working, make a separate copy of every irreplaceable document you have created or modified since upgrading.
Before recovering data from a Time Machine backup, you must install Tahoe on the Mac. You can then use Setup Assistant or Migration Assistant to transfer compatible accounts, apps, settings, and files from the backup.
If you store documents in iCloud Drive or use iCloud Photos, fully synchronized items should become available again when you sign in to the same Apple Account after reinstalling macOS. Before erasing the Mac, check iCloud.com or another Apple device to confirm that important documents, photos, and videos have uploaded successfully. Remember that iCloud is a synchronization service rather than a separate backup, so keep an independent copy of irreplaceable files where possible.
To ensure your data remains accessible after you return to an older version of macOS, consider these backup strategies:
Manual file copying: Copy your most important files, folders, photos, and music to an external storage drive.
Cloud synchronization: Make sure cloud storage services such as iCloud, Dropbox, OneDrive, or Google Drive have finished synchronizing. Do not assume that every app’s data is stored in the cloud, as some applications store data only locally.
Time Machine: If you have a Time Machine backup from before you upgraded to Golden Gate, you can use it to transfer compatible data after reinstalling Tahoe.
The version of macOS you install must be compatible with your Mac. A Mac that was upgraded to Golden Gate can be returned to Tahoe only if that model supports Tahoe. A model that first shipped with Golden Gate cannot be downgraded to Tahoe.
For example, Apple announced the M6 Mac mini before Golden Gate was released, but the Mac did not ship until afterward and requires macOS 27. Always check that your model supports the older operating system before erasing the Mac.
You can download old versions of macOS from Terminal, if they aren’t on the Mac App Store.
Foundry
The next stage is to get the full installer for the version of macOS you require. In most cases, the Mac used to download the installer must itself be compatible with the version of macOS you require.
For this downgrade you need the Tahoe installer, not the Golden Gate installer. For Tahoe and earlier installers, see our guide to downloading older versions of macOS.
Normally Apple makes older versions of macOS available to download from the Mac App Store. For example, you can get Sequoia, Sonoma and Ventura this way. However, as of September 2026, Apple’s hasn’t made Tahoe available from the Mac App Store. We expect that it eventually will do so, but in the meantime the best way to get the Tahoe installer it to use Terminal.
You need to include the relevant version number. For example softwareupdate –fetch-full-installer –full-installer-version 26.6.2.
To see which installers Apple currently offers for that Mac, run:
softwareupdate --list-full-installers
If Terminal reports that the update was not found, Apple may no longer offer that exact release, or it may not be compatible with your Mac.
When the download finishes, the full installer will appear in the Applications folder. Quit it if it opens automatically—you need to retain it to create the bootable installer.
In each case of the above screenshot the macOS installer is listed as Deferred: No, which means the installer is still available.
Mac App Store method
Open the Tahoe download link on a compatible Mac. If the Mac App Store does not open, close it if it is already running and try the link again in Safari.
Click Get.
Software Update should open and offer to download Tahoe. Click Download and confirm that you want to download the older operating system.
If the installer opens automatically after downloading, quit it. You do not want to run it directly over Golden Gate.
The installer will appear as an app named Install macOS Tahoe in the Applications folder.
As noted above, downgrading from one Golden Gate point release to another requires the full installer for the exact earlier release. Because Apple generally offers only the latest installer for each major version of macOS, the version you need may no longer be available unless you previously downloaded and retained it. A Time Machine backup cannot provide the missing installer or reinstall the earlier operating system.
3.
Create a bootable Tahoe installer
Once you have it, you can use the bootable installer of Tahoe to downgrade your Mac.
Foundry
You cannot install Tahoe directly over Golden Gate. To install an older version of macOS, you need to create a bootable installer containing the Tahoe installation files.
You will need a USB flash drive or other external volume. A 32GB drive is recommended, although 16GB is sufficient for many older macOS installers. The drive will be erased during the process.
Replace MyVolume if your external drive has a different name. Make sure --volume contains two ordinary hyphens, not an en dash or em dash. The linked guide explains how to prepare the drive, run the command and troubleshoot the creation process.
4.
Start your Mac from the bootable installer
You want to choose the Install macOS Tahoe option, similar to what’s shown.
Foundry
With the bootable Tahoe installer ready, the next step is to start your Mac from it rather than from the internal drive currently running Golden Gate.
Shut down the Mac.
Connect the bootable Tahoe installer directly to the Mac.
Press and hold the power button. Continue holding it until the startup options screen appears.
Select the bootable installer, then click Continue.
Connect to Wi-Fi if prompted.
5.
Erase the internal startup volume
Foundry
Warning: This step will permanently remove the local accounts, applications, settings and files stored on the Mac.
When the Utilities window appears, select Disk Utility and click Continue.
In Disk Utility, choose View > Show All Devices if the internal volumes are not visible.
Select the internal macOS startup volume, usually named Macintosh HD.
Click Erase or Erase Volume Group, as offered.
Use Macintosh HD as the name and APFS as the format.
Confirm the erase and wait for it to finish.
Quit Disk Utility to return to the Utilities window.
Erase All Content and Settings is not, by itself, a downgrade tool. It removes data and settings while retaining the installed operating system. To replace Golden Gate with Tahoe, you need to erase the startup volume from the bootable installer environment and then install Tahoe.
6.
Install macOS Tahoe
Finally, you can get Tahoe back on your Mac.
Foundry
With the internal startup volume erased, you can now install Tahoe from the bootable installer.
In the Utilities window, select Install macOS Tahoe and click Continue.
Follow the onscreen instructions.
When asked to choose a destination, select the newly erased internal volume, normally Macintosh HD.
Keep the Mac connected to power and the internet while installation completes. It may restart several times.
7.
Set up your Mac
Foundry
After Tahoe is installed, the Mac will start in Setup Assistant.
If you have a Time Machine backup from before the Golden Gate upgrade, you can connect the backup disk and transfer your information during setup. Time Machine can transfer your accounts, apps, settings, and files after Tahoe has been installed, but it does not perform the operating-system downgrade, you need to do that first (as per the steps above).
If your only backup was made under Golden Gate, setting up the Mac as new and copying your documents back manually is the safest approach. This reduces the risk of importing an app, database, or setting that requires macOS 27. You can then reinstall Tahoe-compatible versions of your apps individually.
8.
Transfer data from your Time Machine backup
Once your Mac is set up you can copy your data from your backup.
Foundry
A backup made while the Mac was still running Tahoe is the best one to use. To transfer its contents during Setup Assistant, choose the option to transfer information From a Mac, Time Machine backup, or startup disk. Connect the backup disk, select the appropriate backup, and choose the accounts, apps, settings, and files you want to transfer.
If you have already completed setup:
Connect the Time Machine backup disk.
Open Migration Assistant from the Utilities folder in Applications.
Choose to transfer information From a Mac, Time Machine backup, or startup disk.
Select the Time Machine disk and then the appropriate backup.
Choose the categories you want to transfer and click Continue.
The selected backup will not contain anything created or changed after it was made. Copy those newer documents back from the separate backup you created before erasing the Mac.
What to do if the older macOS won’t install
Check the following:
Confirm that the Mac model supports the version you are installing.
Confirm that the full installer is in the Applications folder and is named correctly before creating the USB installer.
Connect the installer directly rather than through a hub or dock.
Make sure the Mac is connected to the internet.
Re-create the installer if Terminal says it is invalid or the installation fails repeatedly.
Confirm that the internal startup volume was erased as APFS.
Installing macOS 27 may also update the Mac’s firmware. Installing Tahoe later does not necessarily roll that firmware back; a macOS downgrade and a firmware downgrade are not the same operation.
Tips to avoid problems and data loss when you downgrade macOS
Reversing an upgrade carries a number of wrinkles and pitfalls. Many are caused by changes in file formats and settings between versions of the operating system. If you create a document or work on a file in a newer version of macOS and then try to open it in an older version, it may not work.
Where possible, export important documents in standard or widely compatible formats before erasing the Mac. For example, you could export a document as RTF or PDF in addition to retaining its native version.
Take screenshots of preferences and settings
Whenever you perform a clean installation of macOS, it’s a good idea to take screenshots of custom settings in apps and System Settings. That makes it easier to re-create them later.
Make a note of account details for anything you set up while running the newer operating system. Export bookmarks if they are not synchronized, and make sure you have access to application installers, subscriptions and license codes.
Synchronize cloud services
If you use Dropbox, OneDrive, Google Drive or another cloud storage service, make sure synchronization has completed before starting the downgrade. Files visible in a synchronized folder may not have finished uploading.
If you use Gmail, iCloud Mail or another IMAP service, make sure recent mail and drafts have synchronized. If you use a POP3 account, manually back up locally stored mail before erasing the Mac.
Finally, keep the Golden Gate backup intact until you have confirmed that Tahoe starts correctly and that all essential documents have been recovered. Do not erase or repurpose the backup drive merely because the downgrade appears to have completed.
Downgrading an older Intel Mac
Golden Gate does not support Intel Macs. These instructions are for if you want to downgrade an earlier macOS release on an Intel Mac.
Intel Macs start from a bootable installer by holding Option (Alt) at startup. Macs with the Apple T2 Security Chip may also need Startup Security Utility configured to allow booting from external or removable media. See our bootable macOS installer guide for the complete Apple-silicon, Intel and T2 instructions.
An Intel Mac may also be able to use Internet Recovery. Start it while holding:
Shift-Option-Command-R to offer the macOS that came with the Mac, or the closest version still available.
Option-Command-R to offer the latest macOS compatible with the Mac.
Command-R to reinstall the current version.
Internet Recovery cannot install a version older than the one the Mac supports, and the exact version offered can vary.
O Mac se tornou um importante aliado de quem usa a máquina para rodar modelos de inteligência artificial locais — não é à toa que os Macs mini estão sendo muito visados nesse período de boom no mercado.
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Fato é que alguns outros apps também receberam atualizações com essa mesma proposta — além, é claro, de incluir outras novidades. Vamos conferi-los a seguir.
Tripsy
Além de suporte ao iOS 27, o Tripsy — que apareceu na keynote da Apple, diga-se — foi atualizado com algumas outras novidades e melhorias que estão disponíveis como parte dos recursos do Tripsy Pro, entre elas:
Smart Import: importe atividades, locais e reservas de qualquer URL ou documento usando o analisador baseado em IA.
Smart Insights: utilizando os Apple Foundation Models, o aplicativo analisa e compreende o conteúdo de documentos, anexos e emails relacionados às atividades, extraindo apenas as informações relevantes e úteis para apresentá-las aos usuários.
Falando de melhorias, agora é possível encontrar todos os hotéis da sua viagem nas sugestões de localização e dispensar sugestões de partida de aeroportos de que não precisa mais. Ademais, foram aprimoradas as estatísticas de viagem, a estabilidade do mapa e os layouts de importação no Mac.
Por fim, também foi adicionado suporte ao widget extragrande no iPhone para uma melhor visualização do itinerário.
Loop
O player de podcasts Loop ganhou, na sua atualização mais recente, suporte à Siri e aos Atalhos, bem como ao recurso gestos de cabeça dos AirPods compatíveis para pular capítulos de episódios mesmo com o app em segundo plano.
Personalidades do Loop: nas configurações (em “Sobre mim”), agora é possível definir as personalidades que o Loop usará ao gerar o texto da seção “Para você”.
Métricas e estatísticas de escuta: três anéis para você acompanhar seus objetivos de escuta diários e mensais, acompanhando quantos episódios foram finalizados no mês, tempo de escuta diário e variedade de podcasts escutados.
Novos widgets: agora é possível ver o texto da seção “Para você” na Tela de Início em dois tamanhos de widgets (pequeno e médio) além de também ser possível ver seus anéis das métricas de escuta nas Telas de Início e Bloqueada.
O que ouvir em seguida: seção onde novos episódios dos podcasts que você marcou como favoritos e fixados são mostrados para fácil acesso.
O app também recebeu diversas melhorias em áreas como reprodutor de podcasts, busca e episódios baixados, além de uma melhor performance com o app em segundo plano, consumindo muito menos processamento e bateria.
FitWoody
Mais do que o suporte à Siri AI, que possibilita registrar dados por voz com ajuda da assistente, o app de saúde FitWoody agora também permite encontrar informações facilmente com o Spotlight e conta com suporte ampliado ao Handoff. O app também ganhou uma versão nativa para o macOS.
Divulgação/FitWoody
Quanto às melhorias, agora o FitWoody abre diretamente na própria tela, bem como sua pontuação do sono responde a cada noite à medida que ela acontece, de modo que a tela inicial já está completa logo pela manhã.
Steady
O aplicativo de treino Steady chegou à versão 3.0, que tem como destaque o recurso Importação Mágica — de modo que uma foto da ficha da academia, um PDF ou uma mensagem vira um programa de treino editável. Esse recurso usa os novos modelos de IA da Apple em iPhones compatíveis com Apple Intelligence e iOS 27, sem exigir o Steady Pro.
Além disso, o app ganhou planejamento de programas mais inteligente, navegador de programas, recuperação do treino, entre outros recursos.
Divulgação/Steady
A atualização também traz drop sets e deixa o app do Apple Watch mais completo, com lista de exercícios, registro de esforço pela Digital Crown e resumo do treino, reduzindo a necessidade de pegar o iPhone enquanto ele permanece por perto.
Ulysses
Já o popular aplicativo de escrita Ulysses ganhou, graças às capacidades da Siri AI, reconhecimento de contexto na tela e um botão dedicado na barra de ferramentas do macOS que abre a nova interface da assistente para escrever, reescrever, revisar e realizar outras tarefas com texto.
Ainda com relação à barra de ferramentas do aplicativo, agora é possível que os usuários a personalizem totalmente com botões de navegação, blocos, espaços, sugestões e muito mais.
We just released a very nice update across all platforms. The new version is ready for OS 27, features support for Siri AI, and introduces a fully customizable toolbar on macOS.
The update is available now. You can find the release notes on our website.https://t.co/TO7PFbVjGt
A atualização também inclui novos ícones de grupo com pictogramas e aprimora o suporte à acessibilidade “ao editar condições de filtro e ícones de grupo”. Por fim, o app recebeu ajustes visuais para melhor alinhar ao visual do iOS 27 e do macOS Golden Gate 27.
The iPhone 18 Pro models support Apple Reference Image, a way to verify that a photo was taken with an iPhone and hasn't been edited. Apple says it's a method to prove that something actually happened and wasn't AI-generated, likening the feature to a digital film negative.
Apple Reference Image offers a trustworthy, scalable guarantee that a reference image is what it claims to be: a real photograph, captured by a real sensor in an iPhone camera, at a specific time. It sets a new standard for verifiable digital photography.
Apple introduced Apple Reference Image when debuting the iPhone 18 Pro and Pro Max, and today the company shared more information on how the feature works on its Security Research blog.
Apple Reference Image boots the camera sensor into a specialized reference mode. The mode instructs the sensor to cryptographically sign pixel data immediately after capture, and the sensor firmware is prevented from modifying the data. Other authentication systems don't sign images until the end of the software processing pipeline, which Apple says leaves images vulnerable to tampering attacks.
Apple Reference Image creates a "secure digital negative" protected from software compromise alongside a standard editable photo. The negative is stored on-device and includes pixel data, sensor metadata, and cryptographic timestamps with lower and upper bounds. When a user decides to "develop" the negative for verification, it is sent unprocessed to Private Cloud Compute. Private Cloud Compute runs the steps needed to render the image in a secure, private, and verifiable environment.
Apple says the feature resists data injection attacks, compromised operating systems, hardware attacks, and cryptographic attacks. Apple believes Apple Reference Image is the only image provenance system with quantum-secure defenses. In case the system is breached, there is a revocation option. Private Cloud Compute calculates a confidence score for each image, and Apple can revoke individual photos or an entire sensor if fraud is detected.
To safeguard photographers, Apple Reference Image avoids using an explicit, public credential for photographers, and it prevents public association between different photos taken by the same sensor. The confidentiality of the image is protected, including from Apple.
Apple Reference Image is opt-in and is limited to the Main camera sensor.
Algo que não passou despercebido durante a apresentação do iPhone Duo, primeiro smartphone dobrável da Apple, foi a animação ao abrir e fechar o aparelho — uma cortesia da versão adaptada do iOS especialmente para o modelo.
Como quase nada é impossível no mundo dos desenvolvedores, essa animação já foi transportada para o macOS graças ao DuoHinge, que adiciona uma ilusão de ótica interativa de dobra à tela física do seu MacBook.
Ao acessar diretamente o sensor de ângulo da tampa integrado ao Apple Silicon, o DuoHinge projeta sua área de trabalho em tempo real em um plano 3D virtual vertical, aplicando perspectiva realista via raycasting, dispersão gaussiana de vidro em duas passagens e dispersão cromática nas bordas conforme você fecha a tela.
An iPhone Duo–style hinge animation, but on a MacBook. Sometimes it’s fun to build things just because. pic.twitter.com/grYKra4X91
Uma animação de dobradiça no estilo do iPhone Duo, mas em um MacBook. Às vezes, é divertido criar coisas simplesmente pelo prazer de fazê-lo.
O processamento da área de trabalho ocorre localmente no dispositivo, utilizando a taxa de atualização da tela integrada (até 120Hz em telas compatíveis) por meio do ScreenCaptureKit e shaders Metal personalizados, tudo encapsulado em uma camada transparente que permite cliques através dela, sem interromper seu fluxo de trabalho.
O aplicativo lê o sensor de ângulo da tampa e suaviza o movimento de acordo com a cadência de renderização. Um ícone vetorial do MacBook, no estilo da Apple, gira e espelha o ângulo real da sua tela nas barras de menu do macOS (no modo claro ou escuro).
O DuoHinge é gratuito, não contém assinaturas, nem rastreia quantas vezes você abre o seu MacBook. Ele exige pelo menos o macOS Sonoma 14 e pode ser baixado diretamente pela página no GitHub — ao iniciar o aplicativo pela primeira vez, abra-o na barra de menus e conceda permissão de Gravação de Tela e Áudio do Sistema quando o macOS solicitar.
If you recently installed iOS 27 on iPhone, iPadOS 27 on iPad, or MacOS 27 Golden Gate, you might be wondering where the widely hyped new Siri AI set of features are on your device; a dedicated Siri app, a much smarter Siri AI with chatbot like experience, custom voices, and more. These are all ... Read More
A new section in the iOS 27 privacy policy shows that Apple has reversed its stance on using customers’ data to train its AI models. Previously, the company assured customers that it had no need for customer data, and would figure out how to make Siri AI work well without it.
Apple maintains that it “takes steps to ensure that personal data is not stored or used by Apple.” But as Heisepoints out, and Apple has said in the terms of service for a few years now, the audio material may be listened to by Apple employees after anonymization.
[…]
It also admits that data collected may be reviewed by “review personnel.” It is unclear if “review personnel” are Apple employees or a third-party company contracted to read conversation transcripts, as it has historically been.
Starting today, when a user enables Siri AI, they will see a setup screen asking whether they want to opt in to “improve Siri and Apple Intelligence,” with two options: “Share Audio and Text” or “Not Now.”
[…]
What’s important to note here is that nothing is changing about the type of data Apple collects if you opt in to this setting. What’s changing is that Apple will now use the data to train and refine its Foundation Models, as well as Siri and Dictation like before.
Xcode 27 includes Swift 6.4 and SDKs for iOS 27, iPadOS 27, tvOS 27, watchOS 27, macOS 27, and visionOS 27. Xcode 27 supports on-device debugging in iOS 17 and later, tvOS 17 and later, watchOS 10 and later, and visionOS. Xcode 27 requires a Mac running macOS Tahoe 26.6 or later.
Building with Xcode 27 doesn’t work because of some intransparent XCStrings error… and I even can’t check with Xcode 26 anymore because Apple decided to not let me run it on macOS 27…
Apple today added the 2019 4K iMac to its list of vintage products, which means repairs can only be done if Apple has the parts available.
Products are added to the vintage list five years after they were last distributed for sale, and they're moved to the obsolete list at the seven-year mark. Vintage products can be repaired at Apple Stores and by Apple Authorized Service Providers if the parts are available, but that's not guaranteed. Devices that are obsolete are not eligible for repair and Apple no longer makes repair components.
The 2019 iMac preceded the colorful, redesigned M1 iMac that came out in 2021. The machine featured a 21.5-inch Retina 4K display and the standard silver iMac design. The base model was equipped with an Intel Core i3 processor, 8GB RAM, and a 1TB hard drive. Pricing in 2019 started at $1,299.
The 2019 27-inch iMac that was sold alongside the 21.5-inch model was added to the vintage list in July 2025, but Apple sold the smaller model for a longer so it didn't previously qualify as vintage.
Previstos para serem lançados na semana que vem (pelo menos nos Estados Unidos e em Portugal), os novos Mac mini e Mac Studio são alimentados com os chips M6 e M5 Ultra, respectivamente — lembrando que o mini pode ser configurado também com o M5 Pro, enquanto que o Studio de entrada vem com o chip M5 Max.
Pois os primeiros resultados de benchmarks dos dois novos processadores apresentados recentemente pela Apple surgiramhoje no banco de dados do Geekbench 7, oferecendo uma visão dos ganhos de desempenho de cada um deles.
Em ambos os casos, os resultados vistos até agora tratam apenas dos testes de CPU 1Central processing unit, ou unidade central de processamento. — os de GPU 2Graphics processing unit, ou unidade de processamento gráfico. ainda não foram divulgados.
Confira abaixo a pontuação do chip M6 e as pontuações médias do chip M5 para efeito de comparação:
Benchmark de CPU
M6
M5
Single-core
4.071 pontos
3.641 pontos
Multi-core
22.783 pontos
17.948 pontos
Se o resultado acima for preciso, o chip M6 apresenta um desempenho single-core cerca de 12% mais rápido e uma performance multi-core cerca de 27% mais rápida em comparação com o chip M5. Vale notar que o chip M6 está no novo Mac mini, enquanto as pontuações do chip M5 baseiam-se no MacBook Pro de 14 polegadas — mas o desempenho deve ser semelhante.
Na tabela abaixo está a pontuação do chip M5 Ultra de ponta, com CPU de 36 núcleos, bem como as pontuações médias do chip M3 Ultra de ponta, com CPU de 32 núcleos (já que a Apple nunca lançou um chip “M4 Ultra”).
Benchmark de CPU
M5 Ultra
M3 Ultra
Single-core
3.774 pontos
2.920 pontos
Multi-core
52.516 pontos
39.059 pontos
Se os resultados acima procederem, o chip M5 Ultra oferece um desempenho de CPU single-core cerca de 30% mais rápido e um desempenho multi-core cerca de 35% mais rápido em comparação com o M3 Ultra.
Nada mau, hein!
Mac Studio
Chip: M4 Max ou M3 Ultra Memória: 36GB, 48GB, 64GB, 96GB, 128GB, 256GB ou 512GB Armazenamento: 512GB, 1TB, 2TB, 4TB, 8TB ou 16TB
NOTA DE TRANSPARÊNCIA: O MacMagazine recebe uma pequena comissão sobre vendas concluídas por meio de links deste post, mas você, como consumidor, não paga nada mais pelos produtos/serviços usando os nossos links de afiliado.
Salvar uma página da web pode ter diversas finalidades — seja para lembrar de algum detalhe textual ou visual, guardar informações de uma certa data ou apenas manter um registro cronológico de algum endereço. Há vezes, porém, que não dá para depender totalmente de bases de arquivos públicos, seja porque o conteúdo pode ter sido alterado ou não é exibido corretamente, entre outros motivos.
Para evitar possíveis problemas do tipo, vale a pena conferir o WebsiteArchiver, um utilitário para macOS que salva e arquiva páginas da web completas, sendo possível separá-las em pastas e categorias. Segundo o desenvolvedor, uma versão para iPhone/iPad será lançada em breve.
Com ele, as páginas da web são salvas localmente como arquivos HTML — com exportação em .html, .warc, .webarchive, .pdf e Markdown — disponíveis permanentemente e independentes de serviços externos.
O app exibe as páginas salvas de três formas diferentes: a opção “Salvo” mostra a cópia offline, enquanto “Leitor” exibe apenas o texto sem distrações e o modo “Ao vivo” mostra a página atual na web. É possível alternar entre eles quando quiser.
Além disso, a captura usa um motor que possibilita que páginas cheias de JavaScript sejam registradas exatamente como aparecem na tela. Também é possível remover imagens inteiras de páginas.
O WebsiteArchiver está disponível gratuitamente na Mac App Store, sendo possível salvar até dez páginas sem custo. Para desbloquear a versão completa, sem limites de registros, é necessário obter a licença vitalícia, disponível por R$120.
Leitores do MacMagazine, porém, podem aproveitar uma oferta especial para adquirir a versão completa diretamente pelo site do WebsiteArchiver: basta digitar MACMAGAZINE30 na área de código promocional para obter 30% de desconto! Saiba, porém, que o cupom é válido somente para os 50 primeiros usos.
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