Apple Seeds Fourth Beta of macOS High Sierra 10.13.5 to Developers [Update: Public Beta Available]

by

Apple today seeded the fourth beta of an upcoming macOS High Sierra 10.13.5 update to developers, one week after seeding the third beta and more than a month after releasing the macOS High Sierra 10.13.4 update.

The new macOS High Sierra 10.13.5 beta can be downloaded through Apple Developer Center or the Software Update mechanism in the Mac App Store with the proper profile installed.

macoshighsierra10135beta
macOS High Sierra 10.13.5 introduces support for Messages on iCloud, a feature that was previously present in macOS High Sierra 10.13.4 betas before being pulled ahead of the release of the update. Messages on iCloud is also available in iOS 11.4.

The Messages on iCloud feature is designed to store your iMessages in iCloud for improved syncing. Right now, incoming iMessages are sent to all devices where you're signed into your Apple ID, but it's not true cloud-based syncing because your old messages don't show up on new devices nor does deleting a message remove it from all of your devices, both features enabled through Messages on iCloud.

Messages on iCloud also allows your older iMessages and attachments to be stored in iCloud rather than on your iPhone, iPad or Mac, saving valuable storage space.

The update also likely includes bug fixes and performance improvements for issues that weren't addressed in macOS High Sierra 10.13.4, but as Apple does not provide detailed release notes for macOS High Sierra beta updates, we may not know exactly what's included until the new software is provided to the public.

No major outward-facing changes were found in the first three betas of macOS High Sierra 10.13.5, but we'll update this post should any new features be found in the fourth.

The previous update, macOS High Sierra 10.13.4, brought support for external graphics processors (eGPUs) along with Business Chat in Messages and several other bug fixes and smaller feature improvements.

Update: Apple has made a new version of macOS High Sierra 10.13.5 available to public beta testers.

Related Forum: macOS High Sierra

Popular Stories

iphone 16 display

iPhone 17's Scratch Resistant Anti-Reflective Display Coating Canceled

Monday April 28, 2025 12:48 pm PDT by
Apple may have canceled the super scratch resistant anti-reflective display coating that it planned to use for the iPhone 17 Pro models, according to a source with reliable information that spoke to MacRumors. Last spring, Weibo leaker Instant Digital suggested Apple was working on a new anti-reflective display layer that was more scratch resistant than the Ceramic Shield. We haven't heard...
Read Full Article • 111 comments
iPhone 17 Air Pastel Feature

iPhone 17 Reaches Key Milestone Ahead of Mass Production

Monday April 28, 2025 8:44 am PDT by
Apple has completed Engineering Validation Testing (EVT) for at least one iPhone 17 model, according to a paywalled preview of an upcoming DigiTimes report. iPhone 17 Air mockup based on rumored design The EVT stage involves Apple testing iPhone 17 prototypes to ensure the hardware works as expected. There are still DVT (Design Validation Test) and PVT (Production Validation Test) stages to...
Read Full Article • 27 comments
Beyond iPhone 13 Better Blue

20th Anniversary iPhone Likely to Be Made in China Due to 'Extraordinarily Complex' Design

Monday April 28, 2025 4:29 am PDT by
Apple will likely manufacture its 20th anniversary iPhone models in China, despite broader efforts to shift production to India, according to Bloomberg's Mark Gurman. In 2027, Apple is planning a "major shake-up" for the iPhone lineup to mark two decades since the original model launched. Gurman's previous reporting indicates the company will introduce a foldable iPhone alongside a "bold"...
Read Full Article • 123 comments
apple watch ultra yellow

What's Next for the Apple Watch Ultra 3 and Apple Watch SE 3

Friday April 25, 2025 2:44 pm PDT by
This week marks the 10th anniversary of the Apple Watch, which launched on April 24, 2015. Yesterday, we recapped features rumored for the Apple Watch Series 11, but since 2015, the Apple Watch has also branched out into the Apple Watch Ultra and the Apple Watch SE, so we thought we'd take a look at what's next for those product lines, too. 2025 Apple Watch Ultra 3 Apple didn't update the...
Read Full Article • 65 comments
iphone 17 air iphone 16 pro

iPhone 17 Air USB-C Port May Have This Unusual Design Quirk

Wednesday April 30, 2025 3:59 am PDT by
Apple is preparing to launch a dramatically thinner iPhone this September, and if recent leaks are anything to go by, the so-called iPhone 17 Air could boast one of the most radical design shifts in recent years. iPhone 17 Air dummy model alongside iPhone 16 Pro (credit: AppleTrack) At just 5.5mm thick (excluding a slightly raised camera bump), the 6.6-inch iPhone 17 Air is expected to become ...
Read Full Article • 133 comments
iPhone 17 Pro Blue Feature Tighter Crop

iPhone 17 Pro Launching Later This Year With These 13 New Features

Wednesday April 23, 2025 8:31 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
Read Full Article
iPhone 17 Pro on Desk Feature

All iPhone 17 Models Again Rumored to Feature 12GB of RAM

Tuesday April 29, 2025 3:36 am PDT by
All upcoming iPhone 17 models will come equipped with 12GB of RAM to support Apple Intelligence, according to the Weibo-based leaker Digital Chat Station. The claim from the Chinese leaker, who has sources within Apple's supply chain, comes a few days after industry analyst Ming-Chi Kuo said that the iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max will all be equipped with 12GB of RAM. ...
Read Full Article • 83 comments
AirPods Pro 3 Mock Feature

AirPods Pro 3 Just Months Away – Here's What We Know

Tuesday April 29, 2025 1:30 am PDT by
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...
Read Full Article • 102 comments

Top Rated Comments

scottlitch Avatar
scottlitch
91 months ago
Is HomeKit coming to MacOS?
Score: 5 Votes (Like | Disagree)
jjhny Avatar
jjhny
91 months ago
This is typically the magic number for me to think about trusting it on my workstations. Around the the 5th revision.

I used to jump right into the newest OS, but it isn't worth it anymore. They don't do enough real world Q&A.
Score: 4 Votes (Like | Disagree)
fhall1 Avatar
fhall1
91 months ago
This is typically the magic number for me to think about trusting it on my workstations. Around the the 5th revision.

I used to jump right into the newest OS, but it isn't worth it anymore. They don't do enough real world Q&A.
For the last three major versions (10.10, 10.11, and 10.2) I have waited until September to update to the final revision (e.g 10.12.6) just before the new major OS version is released. Then I stay there until the next Sept......rinse, repeat. This way I (hopefully) get the most stable release of the current OS version, just before it's not current any more. Any third party hardware and software should have been updated and with Apple not really including "must-have" features in the brand new OS versions lately, this process has served me well.
Score: 4 Votes (Like | Disagree)
ignatius345 Avatar
ignatius345
91 months ago
Still no APFS for Fusion Drives??!! I fell like I'm living in a limbo...:mad:
We've been living with HFS+ for 20 years. Another few months ain't gonna kill us.

I'd rather it work rock solidly than deal with weird anomalies with my data, thanks.
Score: 3 Votes (Like | Disagree)
Babygotfont Avatar
Babygotfont
91 months ago
Is HomeKit coming to MacOS?
... that comes in 10.14
Score: 2 Votes (Like | Disagree)
OscarMV Avatar
OscarMV
91 months ago
I got out of the iOS beta when 11.3 went live. I so missed iMessage in the Cloud that I recently installed 11.4 on my phone and iPad. Was still hurting that the latest version of Mac OS beta didn't appear to have the feature. I guess they just added it based on this story. It is painful having to delete like 30 messages in the Mac app. Click the little X, click the delete confirmation, click the little X, click the delete confirmation, repeat 28 more times.
If you don't want to take your hands off the keyboard, press command-D to confirm deletion.

It used to be that you could skip deletion verification by pressing command-option-delete or option-click on the X, but that got removed with Messages in the Cloud.
Score: 1 Votes (Like | Disagree)
Read All Comments