Apple Seeds Second Beta of macOS High Sierra 10.13.5 to Developers

Apple today seeded the second beta of an upcoming macOS High Sierra 10.13.5 update to developers, two weeks after seeding the first beta and three weeks 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 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 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 beta of macOS High Sierra 10.13.5, but we'll update this post should any new features be found in the second.

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

Related Forum: macOS High Sierra

Popular Stories

New Things Your iPhone Can Do in iOS 18

20 New Things Your iPhone Can Do in iOS 18.2

Monday December 16, 2024 8:55 am PST by
Apple released iOS 18.2 in the second week of December, bringing the second round of Apple Intelligence features to iPhone 15 Pro and iPhone 16 models. This update brings several major advancements to Apple's AI integration, including completely new image generation tools and a range of Visual Intelligence-based enhancements. Apple has added a handful of new non-AI related feature controls as...
iphone 16 apple intelligence

Apple Drops Plans for iPhone Hardware Subscription Service

Wednesday December 18, 2024 11:39 am PST by
Apple is no longer planning to launch a hardware subscription service that would let customers "subscribe" to get a new iPhone each year, reports Bloomberg's Mark Gurman. Gurman first shared rumors about Apple's work on a hardware subscription service back in 2022, and at the time, he said that Apple wanted to develop a simple system that would allow customers to pay a monthly fee to gain...
iPhone 17 Pro Dual Tone Feature 1

iPhone 17 Pro Rumored to Stick With 'Triangular' Camera Design

Wednesday December 18, 2024 2:36 am PST by
Contrary to recent reports, the iPhone 17 Pro will not feature a horizontal camera layout, according to the leaker known as "Instant Digital." In a new post on Weibo, the leaker said that a source has confirmed that while the appearance of the back of the iPhone 17 Pro has indeed changed, the layout of the three cameras is "still triangular," rather than the "horizontal bar spread on the...
elevation lab airtag battery

Your AirTag's Battery Will Last for Up to 10 Years With Elevation Lab's New TimeCapsule Enclosure

Wednesday December 18, 2024 10:05 am PST by
Elevation Lab today announced the launch of TimeCapsule, an innovative and simple solution for increasing the battery life of Apple's AirTag. Priced at $20, TimeCapsule is an AirTag enclosure that houses two AA batteries that offer 14x more battery capacity than the CR2032 battery that the AirTag runs on. It works by attaching the AirTag's upper housing to the built-in custom contact in the...
apple tv 4k yellow bg feature

New Apple TV Rumored to Launch Next Year With These Features

Tuesday December 17, 2024 9:02 am PST by
The current Apple TV 4K was released more than two years ago, so the streaming device is becoming due for a hardware upgrade soon. Fortunately, it was recently rumored that a new Apple TV will launch at some point next year. Below, we recap rumors about the next-generation Apple TV. Bloomberg's Mark Gurman last week reported that Apple has been working on its own combined Wi-Fi and...
blackmagic vision pro

Blackmagic Debuts $30K 3D Camera for Capturing Video for Vision Pro

Monday December 16, 2024 4:17 pm PST by
Blackmagic today announced that its URSA Cine Immersive camera is now available for pre-order, with deliveries set to start late in the first quarter of 2025. Blackmagic says that this is the world's first commercial camera system designed to capture 3D content for the Vision Pro. The URSA Cine Immersive camera was first introduced in June, but it has not been available for purchase until...
mac pro creativity

Apple Launched the Controversial 'Trashcan' Mac Pro 11 Years Ago Today

Thursday December 19, 2024 7:00 pm PST by
Apple launched the controversial "trashcan" Mac Pro eleven years ago today, introducing one of its most criticized designs that persisted through a period of widespread discontentment with the Mac lineup. The redesign took the Mac Pro in an entirely new direction, spearheaded by a polished aluminum cylindrical design that became unofficially dubbed the "trashcan" in the Mac community. All of ...
iPhone 17 Slim Feature

'iPhone 17 Air' With 'Major' Design Changes and 19-Inch MacBook Detailed in New Report

Sunday December 15, 2024 9:47 am PST by
Apple is planning a series of "major design" and "format changes" for iPhones over the next few years, according to The Wall Street Journal's Aaron Tilley and Yang Jie. The paywalled report published today corroborated the widely-rumored "iPhone 17 Air" with an "ultrathin" design that is thinner than current iPhone models. The report did not mention a specific measurement, but previous...

Top Rated Comments

sprezz Avatar
87 months ago
I wish they would post the areas of focus on these like they used to.
You’re implying Apple is focussed on anything...
Score: 5 Votes (Like | Disagree)
Xardas220 Avatar
87 months ago
Worth the update from Sierra, or still have issues?
My thoughts exactly. Running an old mid-2010 MacPro 12-core, with an SSD plus two HDs for storage and backups. All apps behaving themselves, pretty much, with an Nvidia GTX980Ti GPU. I'm usually all over OS upgrades, but this one seems a bit dodgy for older machines. Do the benefits outweigh the risk?
It's a beta. The second beta. Of course it has issues.
If you realy want to upgrade from Sierra to High Sierra, upgrade to the latest stable version MacOS 10.13.4.
Score: 5 Votes (Like | Disagree)
Luap Avatar
87 months ago
You’re implying Apple is focussed on anything...
They are.. Yet more iOS stuff with extra Cringemoji.
Score: 3 Votes (Like | Disagree)
otternonsense Avatar
87 months ago
10.13.4 had a major issue with multiple display support, and it’s rendered Duet Display for my iPad Pro unusable. The Duet support guy admitted that it broke because Apple hardcoded the resolutions in 13.4, which their team now is (unsuccessfully so far) trying to fix. Apple support of course is mum on this, and Duet cannot give an ETA for a fix.

I haven’t been so frustrated about something so seemingly basic in a long time. iCloud Messages can wait IMHO, as long as Apple does some SERIOUS debugging on their trainwreck OS and stop “fixing” things that aren’t broken.
Score: 3 Votes (Like | Disagree)
urbanmacUser Avatar
87 months ago
Is DisplayLink fixed?
Score: 3 Votes (Like | Disagree)
pennyzee Avatar
87 months ago
I'm not upgrading until they let me use Nvidia cards in my eGPU. This feud of theirs is hurting me as an artist and it makes me real mad.
Score: 3 Votes (Like | Disagree)