Apple Releases First macOS Tahoe 26.4 Public Beta - MacRumors
Skip to Content

Apple Releases First macOS Tahoe 26.4 Public Beta

by

Apple today provided public beta testers with the first release of an upcoming macOS Tahoe 26.4 update for testing purposes. The public beta comes a day after Apple provided the beta to developers.

macOS Tahoe 26 Thumb
After signing up for beta testing on Apple's beta site, public beta testers can download the updates using the Software Update section in the System Settings app.

‌macOS Tahoe‌ 26.4 includes several new features. The Compact tab layout has been reimplemented in Safari for those who missed having the option in earlier versions of ‌macOS Tahoe‌, and there is a new Charge Limit feature that lets Mac users select a maximum charge level that ranges from 80 percent to 100 percent.

Apple silicon Mac users will see now see warnings about apps that are still using Rosetta 2, because Apple is phasing out Rosetta after macOS 27. ‌macOS Tahoe‌ is also the final version of macOS that will run on Intel-based Macs, and Apple is working to remove all lingering Intel features.

We could see additional features in upcoming versions of ‌macOS Tahoe‌ 26.4, such as new emoji characters. Apple is expected to test the update for the next several weeks, with a launch planned for the spring.

Related Roundup: macOS Tahoe
Related Forum: macOS Tahoe

Popular Stories

Apple AI Command Center Concept Mock 1 Textless

macOS Tahoe 26.7 is Full of References to Unreleased Apple Products

Monday August 17, 2026 4:50 pm PDT by
The macOS Tahoe 26.7 release candidate that Apple seeded today has references to several unreleased products, from home devices to iPhones, iPads, AirPods, and Macs. Subscribe to MacRumors on YouTube Some of these codenames have shown up in prior software updates but have new feature flags, while others haven't been seen in the code before. Home Accessories Home Hub...
Read Full Article • 79 comments
apple lock security bug vulnerability fix privacy

iOS 26.6.1 and macOS Tahoe 26.6.2 Fix Nearly 30 Security Vulnerabilities

Monday August 17, 2026 12:11 pm PDT by
The iOS 26.6.1, iPadOS 26.6.1, and macOS Tahoe 26.6.2 updates Apple released today fix almost 30 security vulnerabilities, according to Apple's security support document. This is Apple's third security release in three weeks as AI surfaces bugs faster than the company's typical release schedule can absorb. Apple says the software includes security fixes that were previously added to the iOS...
Read Full Article • 52 comments
iPhone Handoff iOS 27 Feature

T-Mobile to Charge $5 a Month for iOS 27 iPhone Handoff

Thursday September 10, 2026 3:58 pm PDT by
T-Mobile will charge customers $5 per month to use iPhone Handoff, an e-SIM feature that allows the same phone number to be used on two separate iPhones. iPhone Handoff requires carrier support, and at launch, only T-Mobile users in the U.S. and Deutsche Telekom users in Germany will be able to use it. T-Mobile says customers can use their number across two compatible iPhone models and...
Read Full Article • 152 comments

Top Rated Comments

V
vantelimus
8 months ago
Be careful with this public beta. The developer beta corrupted two external drives on my test system. I haven't lost data, but it made the volumes read only and unfixable by Disk Utility.
Score: 7 Votes (Like | Disagree)
A
avtoportret
8 months ago

Worse than that, fsck_hfs is broken in this beta. If you even try running it from the command line it will produce a nasty error.
Yep, same.
Score: 3 Votes (Like | Disagree)
jtfolden Avatar
jtfolden
8 months ago

Btw, my further analysis of the problem is that you are right; it is not a corruption. It looks like a bug with a daemon holding the volume open and not letting the system unmount it to do an integrity check with fsck. Since the integrity can't be checked, the volume gets mounted read-only as a precautionary measure. Sucks for me for a week or two. But it is better than losing data.
Worse than that, fsck_hfs is broken in this beta. If you even try running it from the command line it will produce a nasty error.
Score: 3 Votes (Like | Disagree)
V
vantelimus
8 months ago

yeah others have reported similar problems however it is likely there is nothing wrong with your drives. try putting into a computer that doesn’t have the tahoe beta and you may discover there is nothing wrong with them.

it appears fsck_hfs is broken in this beta
I accept these sorts of risks for my development machine. It seems an unreasonable bug for Apple to release as a public beta.
Score: 3 Votes (Like | Disagree)
T
tywebb13
8 months ago

Be careful with this public beta. The developer beta corrupted two external drives on my test system. I haven't lost data, but it made the volumes read only and unfixable by Disk Utility.
yeah others have reported similar problems however it is likely there is nothing wrong with your drives. try putting into a computer that doesn’t have the tahoe beta and you may discover there is nothing wrong with them.

it appears fsck_hfs is broken in this beta
Score: 3 Votes (Like | Disagree)
T
tywebb13
8 months ago
build the the same as the developer beta 1: 25E5207k

presumably this still has the hfs and dmg bugs.

watch out for those
Score: 3 Votes (Like | Disagree)
Read All Comments