Apple Seeds Third OS X 10.10.5 Yosemite Beta to Developers

os_x_yosemite_round_iconApple today seeded the third beta of OS X 10.10.5 to developers, nearly one week after seeding the second 10.10.5 beta and more than a month after releasing OS X 10.10.4 to the public.

Today's beta, build 14F25a, can be downloaded through the Software Update mechanism in the Mac App Store or through the Apple Developer Center.

The first and second OS X 10.10.5 betas did not appear to include any consumer-facing changes, so it's likely that this update focuses on behind-the-scenes bug fixes and performance enhancements. OS X 10.10.5 beta 2 introduced a fix for the DYLD_PRINT_TO_FILE exploit that's been making headlines over the last few days, and the security flaw will be patched as soon as OS X 10.10.5 is released to the public.

Because we're just a couple of months away from the public release of OS X 10.11 El Capitan, OS X 10.10.5 will likely be one of the last updates to Yosemite, designed to prepare the operating system for its imminent retirement. It will, of course, continue to get bug fixes and minor repairs even after El Capitan's release to patch security flaws and fix other issues.

Over the course of its lifespan, OS X Yosemite has received four updates. The first two brought bug fixes and security improvements, while OS X 10.10.3, the most significant update to Yosemite, introduced the new Photos app, Force Touch APIs, new emoji features, and more.

OS X 10.10.4, the current version of OS X Yosemite, introduced multiple bug fixes and under-the-hood performance improvements, including the removal of the problematic Discoveryd process.

Related Forum: OS X Yosemite

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...
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...
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"...
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 ...
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...
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...
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 ...
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. ...

Top Rated Comments

deviant Avatar
127 months ago
why even bother with it. el capitan is like snow leopard to yosemite. it runs on every yosemite-compatible mac.. yosemite is Lion of this generation, lol.
Score: 9 Votes (Like | Disagree)
redheeler Avatar
127 months ago
why even bother with it. el capitan is like snow leopard to yosemite. it runs on every yosemite-compatible mac.. yosemite is Lion of this generation, lol.
There's no need for someone to post something like this every time a new Yosemite beta comes out. We get it, El Capitan performs better. But some people want a stable OS, which is understandable.
Score: 8 Votes (Like | Disagree)
You are the One Avatar
127 months ago
I can only speak for myself and with my setup and use of apps Yosemite 10.10.5 (14F25a) is rock solid, no lag whatsoever, none of the problems some experience.

El Cap latest PB on the other hand... You really feel it's a beta. I'll enjoy El Cap when it's released, at the moment I'm very happy with 10.10.5.
Score: 7 Votes (Like | Disagree)
rodpascoe Avatar
127 months ago
One of the core focuses in 10.11 is stability, and Yosemite is still pretty buggy at this point. Either way, his post didn't warrant such a rude reply. It's just an OS.
People are so rude on the internet - they'd never dream of saying the things they say in forums to peoples faces.

Agree with you fully, very rude reply to his entitled opinion.
Score: 7 Votes (Like | Disagree)
Planey28 Avatar
127 months ago
There's no need for someone to post something like this every time a new Yosemite beta comes out. We get it, El Capitan performs better. But some people want a stable OS, which is understandable.
One of the core focuses in 10.11 is stability, and Yosemite is still pretty buggy at this point. Either way, his post didn't warrant such a rude reply. It's just an OS.
Score: 6 Votes (Like | Disagree)
man3ster Avatar
127 months ago
I do not think apple should roll out new versions of os x every year. they should stay focused on stability and quality. only release software when it is stable and ready. this drive to come up with new things to put into os x every year is going to complicate the mac experience.
Score: 6 Votes (Like | Disagree)