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Right, let's nip this in the bud...

iOS = BETA Stages
OSX = Developer Preview Stages


iOS Download from Developer Centre
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OS X Download from Developer Centre
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Source:
https://developer.apple.com/devcenter/mac/index.action
https://developer.apple.com/devcenter/ios/index.action


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Now that we are done arguing... Bluetooth seems to be fine for me in Developer Preview 2. However, there is a known bug with Wifi speeds being caused by Bluetooth.
 
Sorry i'm late but I've been searching google for others that have had this problem and finally gave up and posted: https://forums.macrumors.com/threads/1772206/

Just found this post, but all the Beta/Preview talk is distracting....does anyone else have a problem streaming audio from Yosemite public beta via Bluetooth to a speaker? My speaker is a Bose Soundlink II and it worked perfectly in Mavericks

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ughh I hate it after months of searching, you ask someone for help and then somehow solve the problem yourself.

I just went to my sound settings and looked at my output, and for some reason Yosemite isn't automatically switching from my MBA speakers to my bluetooth speakers, so once I manually do it the sound comes out. Hope this helps someone else
 
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