In Os X 10.10 (Yosemite Beta), How to Test Using iOS 6.1 Simulator

In OS X 10.10 (Yosemite Beta), How do I Test Using iOS 6.1 Simulator?

As far as I have experienced, The iPhone simulator always have this kind of issue on every update of OS X, since the core of iPhone simulator is using the core of OS X, and it only support the latest two version. That is,

10.10 -> iOS 7, iOS 8.

10.9 -> iOS 6, iOS 7.

Meanwhile, Xcode obviously only support for downloading the latest two version simulator, which means you can get iOS 6 simulator in Xcode 5, but not in Xcode 6.

However you can get the old simulator by copy/paste the old SDKs into the correct folder, but this still follows the OSX-iOS relation. That is, if you have the iOS 6 simulator SDK, you can run the iOS 6 simulator on OSX 10.9, but not OSX 10.10.

iOS 6.1 simulator on OSX 10.10 Yosemite

iOS Simulator runtimes older than iOS 7.1 will not work on OS X Yosemite.

You can still build your apps to support older iOS versions by setting an older deployment target, but you will not be able to test them on a simulated device running on OS X Yosemite. You can test on a physical device running iOS 6.1, or you can run Xcode 5.1.1 in OS X Mavericks to test your project in the older simulator.

This is not just an arbitrary requirement. This is a limitation of the legacy runtimes not being able to run on the newer host OS versions. The main reason support for sim versions get dropped in new releases is that they just don't work on the new OS versions for one reason or another and would require either major updates to the simulated runtime itself or hacky (performance-costing) workarounds added to the host OS to support them.

Over the past 5 years or so, we've pushed the interface layer between the host and sim lower and lower, reducing it now to probably the smallest that we can accomplish with the current model.

In xcode 6.1 and os x yosemite is not supporting ios 7.1 and below version?

By default, iOS 7.1 simulator is not get downloaded,

 Go to preferences --> Downloads --> click for download 

And the below versions is no more available via the Xcode 6.1 version.

Xcode 5.1.1 - iOS 6.1 Simulator not responding

Ok,

i probably found the answer here: In OS X 10.10 (Yosemite Beta), How do I Test Using iOS 6.1 Simulator?

In short: iOS6 is not supported under OS-X 10.10 and so the simulator won't work.

Older version iOS simulators, like 6 or 5 with XCode 5.1 and OS X 10.9.2

To download older versions:

Xcode / Preferences... / Downloads / You can download older Simulator versions from there

However,you are right, in Xcode 5.1 the only 2 older versions available are 7.0 and 6.1 if you are running Maverick.

Home Button: Shift + cmd + H

Why can't I see the iOS 7.0 simulator in Xcode on Yosemite?

It's because you're on Yosemite. It doesn't support 7.0 anymore.
Had the same issue.

Xcode 7 run on Mac OSX 10.10 Yosemite

Edit:

Xcode 7 runs on OS X 10.10.4

Old:

Yup Xcode 7 beta runs on OS X 10.10

As stated in the release notes below

About Xcode 7 beta

Supported Configurations

Xcode 7 beta requires a Mac running OS X 10.10.

Xcode 7
beta includes SDKs for watchOS 2.0, iOS 9 and OS X version 10.11. To
develop apps targeting prior versions of OS X or iOS, see the section
“About SDKs and the Simulator” in What's New in Xcode available on
developer.apple.com or from the Help > What's New in Xcode command
when running Xcode.

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