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There is always a penalty for using bleeding edge stuff. In the case of Swift, there has been significant penalties for early adopters as people have already discovered.From my understanding, people who have deployed Swift 1.x apps before will be forced to update to Swift 2 if they want to target anything specific to iOS 9 or OS X 10.11 (assuming those SDKs will not be available for Swift 1.x on Xcode 6 at least officially). Otherwise, it is safer to stay with Swift 1.x on Xcode 6 for now (and even more safer if you had not adopted Swift at all so you can target latest APIs in Xcode 7 without penalties).They have not officially confirmed yet which older iOS or OS X versions will be (and not be) supported for Swift 2. So, I am not sure how one can make a safe and informed decision on a migration path for a significant project using Swift.What is your compelling use case that requires you to convert an existing project to Swift 2? Worth thinking about.If the new language constructs, latest APIs, etc., are of in

On my MacPro I have some few issues.Razer Synapse does not show any connection Razer device like my keyboard or my mouse.Chrome WebGL is falling back to software rendering which causes some websites to become very slowly and flickery when scrolling.Git-Tower is always crashing when opening a Git repository.Had 2 Kernel Paniks when my Mac is set to sleep - Power Nap is disabled already (hope that fixes the Issue now)LG TrueColor app for my 21:9 display says it couldnt find USB connection (I guess the same issue like with Razer Synapse)StarCraft2 shows a pesky issue with this cursor zoom effect when shaking the mouse cursor. Still an issue How to disable 'Call out your cursor'?Dropbox-experimental does not start at launch.Box does crash and causes a dialog to show up, asking to terminate Box synchronisation.Memory Monitor does not start all.Typing my password to allow installations of tools is very troublesom. When I type as fast as usual then OSX does stop recognizing my typings at 3

Now I have run 33 minutes usage, 56 minutes in standby and it's on 97%. So I have lost 3% on that time. And I had a 13 miutes long phone call during that time.

You can't use that feature if you're running iOS 8.4, because there is no Developer Disk Image available for it in Xcode 7 as i figured. This is your problem if you're running 8.4 and get an error message similar to this one: Could not find Developer Disk Image

ddeacon22 posted something that could help you here: https://forums.developer.apple.com/thread/3785Also, if you run iOS 8.4 on your device, that is not supported by Xcode 7 until now.

I had already installed 10.11 on a Thunderbolt external. The TB external was idle with Mavericks. I used SuperDuper! to Smart Update from 10.10.4 so no clean install for sure. 10.11 running rather well so just took the plunge. My late 2012 27 iMac is now running 10.11 and is fine so far, having opened Photos, Aperture, Numbers & Pages etc. It does seem faster, especially when opening images in Aperture & Photos.

Same here. Every time I try to view a storyboard or .xib in Xcode 7, I get this exception:UNCAUGHT EXCEPTION (NSInvalidArgumentException): *** -containsValueForKey: only defined for abstract class. Define -[NSUnarchiver containsValueForKey:]!I can run the app fine, I just can't actually view or edit my storyboard/.xibs in Xcode anymore!Stack trace:Process: Xcode [4209] Path: /Applications/Xcode-beta.app/Contents/MacOS/Xcode Identifier: com.apple.dt.Xcode Version: 7.0 (8123.26) Build Info: IDEFrameworks-8123026000000000~7 Code Type: X86-64 (Native) Parent Process: ??? [1] Responsible: Xcode [4209] User ID: 501 Date/Time: 2015-06-10 15:05:14.928 -0400 OS Version: Mac OS X 10.10.3 (14D136) Report Version: 11 Anonymous UUID: 9B7324FE-113A-BF78-0590-ECC7DDE67CD9 Sleep/Wake UUID: A68D9DCC-EE2D-439B-B979-F232409B3139 Time Awake Since Boot: 10000 seconds Time Since Wake: 3700 seconds Crashed Thread: 0 Dispatch queue: com.apple.main-thread Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x000000000000000

I ran into the same problem on the install I did on my iMac (27-inch, Late 2012). I also notice problems with search in the finder window. I ended up restoring to Yosemite from my Time Machine Backup. Glad that someone else had the same problem as it lets me know its the beta software. I also got error messages about the version of Java not being compatible with El Capitan. I am thinking that may be at the root of this.I will wait now until a little more updated beta is available. It is interesting that I still have it installed on my MacBook Pro and it is still running. I am having a problem with mail in that I can't use any control keys to move junk mail to trash or to delelte trash mail. I have to select the mail and delete it that way... Just FYI

i installed into Applications. The betas a apropriately named so there is no problem coexisting with release. I have reset the content of both iOS and watchOS simulators and restarted both and that lets me run the watch app once. To debug again the reset of content has to be repeated in my experience so far. Very slow debug cycle.So far no luch doing the same on device.

my 2010 MBP is also running extremely well with the new beta. I hope the final version is just a smooth.

Well.. I now have the phone with with Autolock disabled so the display is on the whole time and Mobile data completely disabled and there's no drain on the battery. It runs well and it doesn't get got at all.. So yeah.. on at lest my phone it's definitely mobile data that is the issue behind the battery drain, wonder what it does differently to running on Wi-Fi, haven't even enabled battery saving mode either and still no drain 🙂 So all I have to do now is use my 4G mobile router instead and connect my iPhone to it when on the train to work 😝 And the battery will probably last all day without any issues.. 🙂