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You can't do that with El Capitan anyway. For submitting apps, you need to have it built on Yosemite or it won't send the archive to apple.

You can use a VM for Yosemite and have Xcode 6.3.2 running. Apple does not allow devs to submit apps that are running anything other than the stable releases of OS X
I have submitted update for iOS apps using 10.11 and Xcode 6 last week and they were accepted. Last year I submitted OSX apps using beta 10.10 (I had to modify a system file but it went through fine)
 
I have submitted update for iOS apps using 10.11 and Xcode 6 last week and they were accepted. Last year I submitted OSX apps using beta 10.10 (I had to modify a system file but it went through fine)

Yeah I was talking about submitting a Mac App. And there's a reason Apple disallows uploading from beta versions of OS X (at least for the MAS), trying to somehow avoid that that may cause issues in the future, and it's bad for your users.

For instance, an app might work on your beta but not on the release version. I always keep a VM of a stable OS around in case I need to submit a bug fix for an app on the MAS.
 
The command-3 fullscreen windowed video bug in VLC is now fixed. It now operates as should...this was a major downfall of the first release, it would allow command-2 doubling but not command-3 fullscreen windowed mode. Everything appears to be fixed now!!
 
New in Photos: Now able to select multiple unsorted faces by dragging the cursor. yes!!
 
Opening a new tab Safari fullscreen looks wierd
Screen Shot 2015-06-23 at 22.01.47.png
 
Ran into this...

dreamweaver.jpg


This is trying to open Dreamweaver CS6, which will not open in El Capitan. Apparently Java SE 6 doesn't work.
 
I just hope it improves the battery time. My 12" rMB used to get about 10 hours our of a charge. With El Cap DP1 I am maybe getting 5. Also, it has been eating about 20-30% battery if it sleeps for more than 12 hours or so. I have been shutting down as of late instead of letting it sleep to combat this. I realize it's developer code and that we are supposed to be dealing with issues and reporting them (as I have been) so I am not really complaining. But here's to hoping it gets better. About half way thru the install now so we will see.
 
I just hope it improves the battery time. My 12" rMB used to get about 10 hours our of a charge. With El Cap DP1 I am maybe getting 5. Also, it has been eating about 20-30% battery if it sleeps for more than 12 hours or so. I have been shutting down as of late instead of letting it sleep to combat this. I realize it's developer code and that we are supposed to be dealing with issues and reporting them (as I have been) so I am not really complaining. But here's to hoping it gets better. About half way thru the install now so we will see.
I just hope it improves the battery time. My 12" rMB used to get about 10 hours our of a charge. With El Cap DP1 I am maybe getting 5. Also, it has been eating about 20-30% battery if it sleeps for more than 12 hours or so. I have been shutting down as of late instead of letting it sleep to combat this. I realize it's developer code and that we are supposed to be dealing with issues and reporting them (as I have been) so I am not really complaining. But here's to hoping it gets better. About half way thru the install now so we will see.

Every beta of IOS and OS X is the same - it's only to be expected with all the debug code etc.
 
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Can anyone test to see if El Capitan's Photos.app actually fully supports gifs yet? .gif support on Apple products is annoyingly half-baked. Their Photos.app "What file types are supported?" explicitly states .gif and yet... no, no it does not (outside of not rejecting the .gif filetype at least).

Currently in iOS 8 you can add a .gif to Photos.app (it won't play without jailbreak tweaks, but it's still in there as a .gif) and iCloud will eventually download it as a .gif into the Photos Library on your Mac. (It's even stored on iCloud.com as a .gif, though it isn't animated there either...)

But currently in 10.10.3 the OS X Photos.app won't animate them even though iCloud clearly accepts the .gif filetype (!?).

The OS X Photos.app only allows you to add and export gifs to and from the photos library (though only the "unmodified original" type of export; exporting normally exports just the first frame of the gif...). They do not animate. And if you add a .gif into Photos.app on OS X, iCloud will eventually download it into iOS as... a friggin thumbnail. Not even as a .gif.
 
The comments on here make it very obvious that too many non-developers are downloading and running this. The comments about Java not working, and web pages loading funny, and shorter battery life than 10.10 indicate these people should not be installing the DP as they clearly have no understanding of what a DP is.
 
I just hope it improves the battery time. My 12" rMB used to get about 10 hours our of a charge. With El Cap DP1 I am maybe getting 5. Also, it has been eating about 20-30% battery if it sleeps for more than 12 hours or so. I have been shutting down as of late instead of letting it sleep to combat this. I realize it's developer code and that we are supposed to be dealing with issues and reporting them (as I have been) so I am not really complaining. But here's to hoping it gets better. About half way thru the install now so we will see.

Check the console and activity monitor to see what's using more than usual for both CPU and network.
 
The comments on here make it very obvious that too many non-developers are downloading and running this. The comments about Java not working, and web pages loading funny, and shorter battery life than 10.10 indicate these people should not be installing the DP as they clearly have no understanding of what a DP is.
I concur, but mail should work with exchange. Hell, mail should work.
 
Gmail in Mail works perfectly for me in DP2. Perhaps you didn't do a fresh install?
Apple always recommends upgrading OSX & iOS to the next OS (instead of installing freshly) but that has always lead to trouble for me, sometimes minor sometimes major. But a freshly installed OS
always runs smoother and faster in my experience.

But when I try to open Firefox it says that it's broken and recommends to trash it.

Edit: Opened Firefox when I set it to open unsigned apps in system preferences.
Previously it was possible to open unsigned apps (the first time) with right mouse click -> open and then confirm to open, this wasn't the case here.
 
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The comments on here make it very obvious that too many non-developers are downloading and running this. The comments about Java not working, and web pages loading funny, and shorter battery life than 10.10 indicate these people should not be installing the DP as they clearly have no understanding of what a DP is.

Non-developers will always run beta versions of iOS and OS X, and they'll always come to MacRumors to post about it. There is a huge difference between simply commenting on things that don't work and complaining about those things.

It's best to just get used to it now, because it's not going away anytime soon.
 
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Does anybody know if the beta will be updatable into the final version when it comes out in fall or will I have to reinstall?
Was Yosemite beta updatable?
 
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