How to Check old IOS app Deployment Target 7.0 on New Version with 9.0 - ios7

If I build my app deployment target set to 7.0 will it be compatible with iOS versions up to 10 for adhoc testing.

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Can I use Anypoint Studio 6.0 and 7 at the same time?

We have projects going on and we are developing on AS 6 and I want to test AS 7.0 without breaking the 6 version. Can I run them at the same time? If not should I uninstall 7.0 version and install 6 again when I am done with 7.0 version?
more than Anypoint studio, I would care about which version of mule runtime you are using.
in the latest anypoint version 6.x there is mule runtime 3.9.0
in the latest one for 7. there is mule runtime 4.1.1.
you can install previous mule runtime version from the menu (install new software and add this url: http://studio.mulesoft.org/r5/studio-runtimes/)
If you are on Windows, you can go simply install into two separate folders.
If you are on Linux, I suggest you have two separate installations of eclipse (just unzip eclipse into two separate folders) and install the studio versions as plugins, for example, see this from MuleSoft documentation.
Yes you can have both Anypoint Studio 6 and 7 installed on your PC. They should be in separate install folders. Make sure the Anypoint Studio 7 points to JDK 1.8 or higher version.

Targeting build for Worklight 6.2

I am developing on Eclipse Juno SR2 with MobileFirst 7.x installed from Eclipse Market Place.
However, my target server is Worklight 6.2. How do I create a .wlapp build for targeting to 6.2 version? There doesn't seem to be a target version to choose from in eclipse.
The build I create has a platformversion 7.x which is failing to install in Worklight 6.2 console.
There is no backwards compatibility for what you are attempting.
You cannot run MobileFirst 7.1 apps on Worklight 6.2; these are very very different releases that are simply not compatible.
If you develop using 7.1, use 7.1.

Will Xamarin Studio 5 work with Xcode 6 Beta?

I currently have Xcode 5 and Xamarin Studio 5 installed; the latest stable version releases of both. I would like to install Xcode 6 Beta to try out Swift, but I don't know if it'll mess up Xamarin, which I need to keep functioning.
Can Xamarin Studio 5 and Xcode 6 Beta be installed side-by-side on the same machine?
You can install Xcode 6 beta side by side with Xcode 5. You can use xcode-select to switch between the different versions of command line tools so that it doesn't break your Xamarin stuff.

Can Worklight Studio 6.0 and Worklight Studio 6.1 be installed on the same machine

I have a laptop running Windows 7 Pro. Is it safe to install both WL studio 6.0 and 6.1 on the same laptop? If it is safe to have both versions installed can the Android SDKs be shared between the installs or should each version of WL studio have its own install of the Android SDKs.
Thank you for any advice you can provide.
You can easily install multiple versions of WL studio on 1 machine, just use a fresh install of Eclipse for each version. Creating separate workspaces inside of eclipse will have the same version of WL across all workspaces so you will need multiple Eclipse instances to accomplish this. In regards to your Android SDK question you can point each eclipse instance to the same Android SDK, but you will need to install the android tools on each version in order to work properly.
Please make sure you are running the latest 6.0.0.x ifix when attempting to run at the same time as some issues were resolved in this version. If you are an IBM WL customer please request the latest fix pack containing this fix.
Also, ensure you install the right version of Eclipse for each Worklight Studio version. Worklight 6.0 only runs on eclipse 4.2.2 (Juno SR2), while Worklight 6.1 runs on either eclipse 4.2.2 or eclipse 4.3.1 (Kepler SR1). See System Requirements for detailed requirements for all Worklight versions.

Will windows phone app with target version 8.0 run on 7 or 7.1?

Initially i developed my windows phone app with version 7.1 but later i upgraded it to target the version 8.0 .
Now my doubt is that will my app work in windows phone 7.1 version??
Thank You in Advance!
No it won't. Keep it in 7.1 if you don't make use of any special features available only in 8.0. Or maintain two project version as explained in Nokia Developer Community Wiki if you need some feature in 8.0 platform but want to keep support for 7.1. You can submit two .XAP version -for WP 8.0 and 7.1- for one application in Windows Phone Marketplace.
You cannot convert a windows phone 8 app to Windows Phone 7.1, but you can target both versions. Details on how the whole process works can be found here.
Hy,
if you have upgraded to 8.0 WindowsPhoone you can no longer perform in WindowsPhone downgrade to 7.1, my advice if you want to continue to develop for both operating systems keep 2 copies of the project