iBeacon on Mountain Lion with Xcode 5.02 - osx-mountain-lion

Does iBeacon peripheral work with XCode 5.02 or should we need to update to mavericks?
Current OS version is 10.8.4 and it does support Bluetooth 4.0

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How to install Xcode 11.3 on macOS High Sierra 10.13.6?

Currently I am using Xcode 10.1 on macOS High Sierra 10.13.6, on a Early 2011 MacBook Pro with 4GB RAM.
Problem is that I am unable to upgrade to macOS Catalina. Is it possible to install Xcode 11.3 in the macOS High Sierra? Or is there any other safe solution for installation of macOS Catalina in my unsupported Early 2011 MacBook Pro and then install Xcode 11.3?
Please suggest a well tested and safe solution.
Your model of Mac, i.e. Early 2011 MacBook Pro can't be upgraded past macOS High Sierra 10.13.6 using any official means, i.e. macOS High Sierra 10.13.6 is the highest supported macOS release for your model of Mac.
Source: Mactracker app for macOS and iOS
The last release of Xcode supported on macOS High Sierra 10.13.6 is Xcode 10.1.
Source: Xcode - Wikipedia
So, officially speaking, your model of Mac cannot run macOS Catalina and by extension Xcode 11.x.
There is no officially supported solution.
Xcode 11.3 is supported on macOS Mojave 10.14.4 or later. So, your best recourse would be to be get a Mac that can run the said release of macOS.

Can I submit app to App Store if I install OS X Yosemite and XCode 6 GM?

Currently I have Mountain Lion OSX.
I want to download the XCode 6 GM. I'm thinking to upgrade the my Mini Mac (late 2009, 8GB) to Yosemite preview instead of Mavericks.
If I install Yosemite preview and XCode 6 GM, can I submit app to the App Store? Or only with Mavericks?
The description says it.
Xcode 6 GM seed
Xcode 6 GM seed, including the new Swift programming language, is free
for Registered Apple Developers. Sign in with your Apple ID to
download. Xcode 6 GM seed runs on OS X Mavericks.
Xcode 6.1 beta for OS X Yosemite
This pre-release version of the Xcode 6.1 developer tools is required
when developing for OS X Yosemite, and includes the Swift programming
language. Xcode 6.1 beta runs on OS X Mavericks and OS X Yosemite
Developer Preview.

My Mac app is crashing on OS X 10.7 (from tester reports). How can I test on 10.7 when my dev machines are 10.8?

I have a Mac app that I built on the latest Xcode on an OS X 10.8 machine. Some of our beta testers are getting crashes on 10.7. Here in the office we don't have any machines with 10.7 on them.
On iOS we have the simulator to test on iOS 5. How can I do this with the Mac? Do I need to purchase a machine with OS X 10.7 on it in order to test?
Thanks.
Looks like the latest version of VMWare Fusion does OS X virtualization. I'll give that a try.

Is moving to Lion a prerequisite for moving to XCode 4.1 (from the app store)?

should you only download XCode 4.1 from the app store if you move to Lion?
i.e I am staying on Leopard for a few more weeks, so do I have to stay with XCode 4.0.2 until I move to Lion?
Yes. Xcode 4.1 Requires Lion. This has been well documented, but 4.2 is apparently available for Snow Leopard as well.
Xcode 4.2 is available for both Lion and Snow Leopard, if you download it from the iOS Developer Centre while logged in as a registered developer. The Mac App Store will only upgrade you to Xcode 4.2 if you upgrade to Lion, but you can manually install it on Snow Leopard by manually downloading it as described here, and it runs just fine on Snow Leopard.
Yes moving to Lion is a requirement. 4.1 brings all of the Lion features into the Xcode environment. I would say if you aren't ready to move to Lion yet, then just stick with 4.0.2 unless you need to develop for Lion.
UPDATE: As of Xcode 4.2, it is now for both Lion and Snow Leopard.
Yes, it seems:
This is a pre-release version of Xcode 4.1 for both Mac and iOS development. This release requires Mac OS X Lion and includes iOS SDK 4.2. Continue to use Xcode 3.2.5 on a Snow Leopard partition if you plan to submit Mac or iOS apps to the App Store
Details: http://thetechjournal.com/electronics/computer/software/xcode-4-1-developer-preview-for-mac-os-x-lion-is-available-for-download.xhtml#ixzz1TGiXaC1w
UPDATE: This question was asked in Jul 2011. As of now, Nov 2011, Xcode 4.2 is already released and made available on the Mac App store.

Question iOS SDK 4.0

I am trying to locate IOS SDK 4.0. But I'm unable to find it. I'm currently running v10.5.6 osx and I'm unable to install the xcode iOS 4.2 cause it says I require 10.6.
Will iOS SDK 4.0 work?
Thanks
iOS SDK 4.0+ requires Snow Leopard / Mac OS 10.6+.
What are the system requirements for the iOS SDK?
To develop with iOS SDK and participate in the iOS Deeloper Program you must have an Intel-based Mac running Mac OS X Snow Leopard. Refer to the iOS SDK Read Me document for full details on system requirements. You must be registered as an Apple Developer in order to access the iOS SDK and iOS SDK Read Me document.
Compatibility: Xcode 3.2 requires an Intel-based Mac running Mac OS X Snow Leopard version 10.6.4 or later. Note: some distributions of Xcode do not include the iOS SDKs; you can verify their presence in the Installer’s “Custom Install” pane.
Taken from About Xcode and IOS SDK
No, you cannot install it on anything under 10.6: How to install iphone sdk 4 on Mac OSX 10.5.8

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