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Although it's a developer preview, it's still not showing up as it should in MAS after installing the Software Update Seed Configuration Utility (which is supposed to make it show up in MAS).
Interesting, as the update is in the developer seed catalog; apparently it's misconfigured.
 



os_x_yosemite_round_icon.jpg
Apple 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 fro 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.

Article Link: Apple Seeds First OS X 10.10.5 Yosemite Beta to Developers
Why???? why bother will all that effort on an interum version when another major release is happening??? I just loaded the beta of 10.11 the other day on an aging 2009 MacBook and it works a LOT better than 10.10.3...... seems odd they are split like this on their development .......


Why
I'm a bit surprised at there being a 10.10.5. I've tested the public beta for Yosemite 10.10.3 and 10.10.4 and although they weren't great.

I'm now on public beta for El Capitan and iOS 9 and they work great. Well aside from a couple of cosmetic bugs on El Cap but the core foundations seem fine and this is the first public beta, I can't wait to test the other versions.

Saying that though I'd hate to see the Developer versions!
 
There seems to be an issue with the updater, which I ran manually. When the install is done, I'm left with a "Install OS X Yosemite Developer Preview.app" at the root level of the disk which shouldn't be there.
 
There seems to be an issue with the updater, which I ran manually. When the install is done, I'm left with a "Install OS X Yosemite Developer Preview.app" at the root level of the disk which shouldn't be there.
so . . . delete it?
 
so . . . delete it?
Of course that's an option, but it's not something that should be there in the first place; it's not even where the installer goes when you download it from the App Store.
 
Apple broke a lot of software going to yosemite is still not fully settled down yet. I'd have preferred this to be 10.10.6 yosemite rather than even more things changed that are getting broken for very little improvement to its usability!

Hopefully El Capitan sticks around for longer. I'm still bemused by the design choices considering the precidents set in ios. The icons in osx kill me. So much so I replace them with ios ones I don't get why we have different icons when they now look and function Identically such as messages!

it can unify much closer and still retain all the desktop goodness. Glad to see window snapping etc but the icons gotta go
 
Of course that's an option, but it's not something that should be there in the first place; it's not even where the installer goes when you download it from the App Store.
maybe a wonky package installer? Are you 100% certain it wasn't there from before? Now you have be afraid to run the combo installer.
 
maybe a wonky package installer? Are you 100% certain it wasn't there from before? Now you have be afraid to run the combo installer.
I'm sure it wasn't there before, it's in the payload of the installer package.
 



os_x_yosemite_round_icon.jpg
Apple 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 fro 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.

Article Link: Apple Seeds First OS X 10.10.5 Yosemite Beta to Developers
One of the 'under-the-hood' surprises was the removal of bit-accurate midi interfaces (used in music production) compatibility. 10.10.4 now supports only core-audio type. That means that people have to either spend hundreds of dollars to buy new interfaces or revert back to 10.10.3 (sometimes back to Mavericks is necessary). Anybody involved in music production should be aware of this. I talked to Apple support and there is no fix for this. They advised me to call the company to get drivers updated. Sometimes, we can't just wait as it may take weeks or months before an update is ready. This is quite upsetting.
 
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