Third macOS Tahoe 26.5 Beta Now Available for Developers - MacRumors
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Third macOS Tahoe 26.5 Beta Now Available for Developers

Apple today provided the third beta of an upcoming macOS Tahoe 26.5 update to developers for testing purposes, with the update coming a week after the second beta.

macOS Tahoe 26 Thumb 2
Developers can download the ‌macOS Tahoe‌ 26.5 update by opening up the System Settings app, selecting the General category, and then choosing Software Update. Beta Updates will need to be enabled, and a free developer account is required.

No new features were found in the first two ‌macOS Tahoe‌ 26.5 betas, and it's likely the update primarily focuses on bug fixes and performance improvements.

Related Roundup: macOS Tahoe
Related Forum: macOS Tahoe

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Top Rated Comments

21 weeks ago
build number is 25F5058e

the other betas released today:

macOS 15.7.7 RC 1 (24G716)
macOS 14.8.7 RC 1 (23J516)
iOS 26.5 beta 3 (23F5059e)
iPadOS 26.5 beta 3 (23F5059e)
tvOS 26.5 beta 3 (23L5460d)
audioOS 26.5 beta 3 (23L5460d)
visionOS 26.5 beta 3 (23O5458e)
watchOS 26.5 beta 3 (23T5558e)
Score: 5 Votes (Like | Disagree)
dillacom Avatar
21 weeks ago
Bitdefender Gravity Zone isnt working with it. the network plugin blocks all internet traffic.
and does not let you install it again
Score: 2 Votes (Like | Disagree)
DocMultimedia Avatar
21 weeks ago
Loaded with intelligence. Or not. 🤣
Score: 2 Votes (Like | Disagree)
21 weeks ago
No internet connectivity at all.:( I suspect a conflict with Little Snitch. Disabling LS does not restore internet either. Removing LS, and internet works. The common thread of all these reports (Adguard, Norton etc) is they all employ network filters and/or extensions. This is a bare bones install used for testing and isolating. LS and LaunchControl are the only things I've added.
Score: 1 Votes (Like | Disagree)
Dirty Mac Avatar
21 weeks ago
Avast security extension also breaks mail, weather and updating many apps.
Score: 1 Votes (Like | Disagree)
21 weeks ago
On my MacBook Pro ADGuard (nightly) does cause issues with this beta. If it es enabled, not one app can access the internet.
Score: 1 Votes (Like | Disagree)