Apple Seeds Sixth OS X 10.10.4 Yosemite Beta to Developers and Public Beta Testers - MacRumors
Skip to Content

Apple Seeds Sixth OS X 10.10.4 Yosemite Beta to Developers and Public Beta Testers

by

os_x_yosemite_round_iconApple today seeded the sixth beta of OS X 10.10.4 to developers and public beta testers, approximately one week after releasing the fifth OS X 10.10.4 beta and nearly two months 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, which included the new Photos for OS X app.

The new beta, build 14E36b, can 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, but the fourth beta introduced a significant behind-the-scenes update that may improve networking performance for users who have experienced issues with OS X Yosemite.

Discoveryd, a somewhat problematic networking process that has been linked to multiple bugs in OS X 10.10, was removed in favor of the older bug-free mDNSresponder.

It is not clear when Apple plans to release OS X 10.10.4 to the public, but the fact that we've now received six betas suggests we may be nearing the end of the beta testing period. It's possible we could see the public release of OS X 10.10.4 on June 30, the same day Apple plans to release iOS 8.4 with the new Music app and Apple Music service.

Related Forum: OS X Yosemite

Popular Stories

iOS 27 Next to iPhone

Here's When iOS 27 Rolls Out Today in Every Time Zone [Update: It's Out]

Sunday September 13, 2026 3:00 am PDT by
Update 10:04 a.m.: iOS 27 is rolling out now, though it may take a bit for all users to see it, so keep checking! Apple is about to release iOS 27, which will finally deliver more advanced Siri AI capabilities as well as a variety of other refinements, improvements, and new features to iPhones. It's Apple's biggest software update of the year, and Apple announced at Wednesday's iPhone event...
Read Full Article • 151 comments
iOS 27 Icon iPhone

iOS 27 Available Today With These 8 New Features

Monday September 14, 2026 9:00 am PDT by
Update: Apple has released iOS 27. During its iPhone 18 Pro and iPhone Duo event last week, Apple announced that iOS 27 will be released widely on Monday, September 14. iOS 27 should be available around 10 a.m. Pacific Time / 1 p.m. Eastern Time today via the Settings app, under General → Software Update. Below, we have highlighted eight new features and changes coming with iOS...
Read Full Article • 110 comments
deep black iphone 18 pro

Apple Says iPhone 18 Pro Max Sold in U.S. Differs in One Way

Saturday September 12, 2026 3:27 pm PDT by
As noted by Nicolas Lellouche, who writes for the French tech website Numerama, Apple has updated its tech specs pages for the iPhone 18 Pro and iPhone 18 Pro Max to clarify which models are equipped with its new C2 cellular modem and where. Apple now says the iPhone 18 Pro has a C2 modem worldwide, while the iPhone 18 Pro Max uses the chip in every country except for the U.S. According...
Read Full Article • 137 comments

Top Rated Comments

AZhappyjack Avatar
AZhappyjack
147 months ago
So.. We get yet another Mac OS X Yosemite 10.10.4 BETA just one week after the last one, but still no iOS 9 BETA2 to fix the battery drain? :(
iOS beta releases have not come more frequently than about 2 week intervals, historically. OS X dev previews have pretty much followed suit in terms of release schedule, at least for the .0 releases.

Your patience will be rewarded.

This chart is iOS beta releases, and is included for reference:



Attachment Image
Score: 8 Votes (Like | Disagree)
M
MikhailT
147 months ago
How many more betas are there gonna be of 10.10.4? Damn. It's been in testing for 2 months!
As many as it takes to get the quality of the update to be as bug-less as possible, especially as this may the last update to Yosemite before they shift to El Cap completely. Complex software like an OS update takes months to test, validate, and finish.

The whole reason Yosemite was buggy as heck was because they didn't take their time to do it right.
Score: 8 Votes (Like | Disagree)
TMRJIJ Avatar
TMRJIJ
147 months ago
OS X Yosemite? What is this nonsense? El Capitan is where it's at. I barely remember Yosemite. What version was that . . OS X 10.3? I'm pretty this came before Tiger right? hmmm . . . . .
Score: 8 Votes (Like | Disagree)
sniffies Avatar
sniffies
147 months ago
Yosemite is history.

Give us El Capitan beta 2, Apple Music, and Apple News.
Score: 8 Votes (Like | Disagree)
mw360 Avatar
mw360
147 months ago

3 - Insane battery drain. I was getting 20+ hours under iOS 8 two weeks ago. Now I'm getting 4-6 hours with iOS 9 beta 1. This is easily the highest priority bug to fix - it impacts me every day and renders my iPhone for the later part of the day. This isn't a small problem that requires a bit of tweaking - this seems like a massive issue that needs to be fixed immediately. It may be a small issue code wise... maybe just a busy loop somewhere wasting power in the background... but it has a huge impact on user experience
Nothing is a massive issue in beta 1. Even if the OS crashed every 30 seconds beta testers aren't supposed to go around getting their knickers in a twist about it. You would submit a bug report, and advise you are unable to test further and wait for beta 2. You don't demand a beta 2 'immediately.'

If your user experience is being impacted every day then you shouldn't have installed a developers' beta 1 OS on your phone. If this were a release candidate, you might have a point, but there are months ahead where the beta process will take its usual course. You may find the battery drain is actually a very low priority bug right now, depending on how much Apple know about the causes, and how much work would be involved to fix it.
Score: 5 Votes (Like | Disagree)
star-affinity Avatar
star-affinity
147 months ago
The whole reason Yosemite was buggy as heck was because they didn't take their time to do it right.
I wouldn't call it ”buggy as heck”. Yosemite is and has been working very well for me overall.
Score: 4 Votes (Like | Disagree)
Read All Comments