Skip to Content

Apple Seeds First OS X 10.10.5 Yosemite Beta to Developers

os_x_yosemite_round_iconApple today seeded the first beta of OS X 10.10.5 to developers, two weeks after releasing OS X 10.10.4 to the public. Coming just a few months ahead of the public release of OS X 10.11 El Capitan, OS X 10.10.5 may be one of the last significant updates to Yosemite.

The new beta, build number 14F6a, can be downloaded from the Apple Developer Center.

It is not yet clear what's new in the OS X 10.10.5 beta, but like 10.10.4 and earlier betas, it likely includes bug fixes and performance enhancements.

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

MacBook Neo Feature Pastel 1

First MacBook Neo Benchmarks Are In: Here's How It Compares to the M1 MacBook Air

Thursday March 5, 2026 4:07 pm PST by
Benchmarks for the new MacBook Neo surfaced today, and unsurprisingly, CPU performance is almost identical to the iPhone 16 Pro. The MacBook Neo uses the same 6-core A18 Pro chip that was first introduced in the iPhone 16 Pro, but it has one fewer GPU core. The MacBook Neo earned a single-core score of 3461 and a multi-core score of 8668, along with a Metal score of 31286. Here's how the...
imac video apple feature

Apple Unveils Seven New Products

Friday March 6, 2026 11:48 am PST by
Apple this week unveiled seven products, including an iPhone 17e, an iPad Air with the M4 chip, updated MacBook Air and MacBook Pro models, a new Studio Display, a higher-end Studio Display XDR, and an all-new MacBook Neo that starts at just $599. iPhone 17e features the same overall design as the iPhone 16e, but it gains Apple's A19 chip, MagSafe for magnetic wireless charging and magnetic...
Apple MacBook Pro M4 hero

Apple Planning 'MacBook Ultra' With Touchscreen and Higher Price

Sunday March 8, 2026 8:05 am PDT by
Apple is planning to launch an all-new "MacBook Ultra" model this year, featuring an OLED display, touchscreen, and a higher price point, Bloomberg's Mark Gurman reports. Gurman revealed the information in his latest "Power On" newsletter. While Apple has been widely expected to launch new M6-series MacBook Pro models with OLED displays, touchscreen functionality, and a new, thinner design...

Top Rated Comments

139 months ago
Yosemite ?
Yes. You know, the current OS X release.
Score: 7 Votes (Like | Disagree)
bladerunner2000 Avatar
139 months ago
Are you proposing Apple abandon the current most up to date release of OS X? Great plan.
LOL!

Macrumors needs to reinstate downvoting comments.
Score: 2 Votes (Like | Disagree)
RoelJuun Avatar
139 months ago
Businesses don't upgrade that quick...
Most businesses don't use Yosemite.
Score: 2 Votes (Like | Disagree)
bladerunner2000 Avatar
139 months ago
Maybe they will once everyone understands sarcasm.
I don't think sniffies was being sarcastic.
Score: 2 Votes (Like | Disagree)
139 months ago
Yosemite ? Isn't it outdated already ? :p
Score: 2 Votes (Like | Disagree)
139 months ago
Are you proposing Apple abandon the current most up to date release of OS X? Great plan.
lol @ people
Score: 1 Votes (Like | Disagree)