Apple Seeds Fourth OS X 10.10.4 Yosemite Beta to Developers, Public Beta Testers - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple Seeds Fourth OS X 10.10.4 Yosemite Beta to Developers, Public Beta Testers

os_x_yosemite_round_iconApple today seeded the fourth beta of OS X 10.10.4 to developers, just over two weeks after releasing the third OS X 10.10.4 beta and a month after releasing the first OS X 10.10.4 beta. OS X 10.10.4 has been in testing since mid April, following the early April release of OS X 10.10.3 with the new Photos for OS X app.

The new beta, build 14E26a, can be downloaded through the Software Update mechanism in the Mac App Store or through the Mac Developer Center.

OS X 10.10.3 brought several consumer-facing changes including the new Photos for OS X app, a redesigned emoji picker, and diversified emoji, but OS X 10.10.4 appears to be an under-the-hood update that brings performance enhancements and bug fixes. Thus far, OS X 10.10.4 betas have not included outward facing design changes or feature additions.

The first two updates to OS X Yosemite, OS X 10.10.1 and OS X 10.10.2, were also minor behind-the-scenes updates that improved performance through bug fixes and enhancements.

Related Forum: OS X Yosemite

Popular Stories

imac video apple feature

Apple Released Yet Another New Product Today

Friday March 20, 2026 2:39 pm PDT by
Apple has unveiled a whopping nine new products so far this March, including an iPhone 17e, iPad Air models with the M4 chip, MacBook Air models with the M5 chip, MacBook Pro models with M5 Pro and M5 Max chips, the all-new MacBook Neo, an updated Studio Display, a higher-end Studio Display XDR, AirPods Max 2, and now the Nike Powerbeats Pro 2. iPhone 17e features the same overall design as...
ios 26 4 pastel

iOS 26.4: Top 10 New Features Coming to Your iPhone

Friday March 20, 2026 2:44 pm PDT by
iOS 26.4 isn't the major update with new Siri features that we hoped for, but there are some useful quality of life improvements, and a little bit of fun with an AI playlist generator and new emoji characters. Playlist Playground - Apple Music has a Playlist Playground option that lets you generate playlists from text-based descriptions. You can include moods, feelings, activities, or...
iPhone 18 Pro Deep Red Feature

iPhone 18 Pro Launching Later This Year With These 12 New Features

Wednesday March 18, 2026 7:39 am PDT by
While the iPhone 18 Pro and iPhone 18 Pro Max are not expected to launch for another six months or so, there are already plenty of rumors about the devices. It was initially reported that the iPhone 18 Pro models would have fully under-screen Face ID, with only a front camera visible in the top-left corner of the screen. However, the latest rumors indicate that only one Face ID component...

Top Rated Comments

extricated Avatar
141 months ago
I hope the Photos app is getting some attention.
Score: 15 Votes (Like | Disagree)
141 months ago
Half of my time I reside in Indonesia, it's not the slow data but data is expensive, most people in Indonesia (if they have internet) have internet on their mobile phones, speed is ok but downloading several beta's in a month just costs too much.
Or, even worse, downloading a new OS!
Then dont download betas.
Score: 13 Votes (Like | Disagree)
141 months ago
discoveryd is gone and replaced by mDNSresponder in this seed.
Score: 11 Votes (Like | Disagree)
jafingi Avatar
141 months ago
Another 1GB update. This seems to be the norm lately.

And so what? People don't use 56K modems anymore.
Score: 9 Votes (Like | Disagree)
justperry Avatar
141 months ago
Slow... As usual...

Erm, as in slow to download?
If that's the case, no problem here, downloaded in about 5 minutes.
Score: 9 Votes (Like | Disagree)
ValSalva Avatar
141 months ago
behind-the-scenes updates that improved performance through bug fixes and enhancements.

Good for 10.10.4. Hoping this is what 10.11 will mostly consist of.
Score: 9 Votes (Like | Disagree)
Related Apple News: Local News | Opinion | Lifestyle | Mac | Health