Do apps compiled for Windows Phone 8 run on Windows Phone 8.1 ?
Yes apps built for Windows Phone 8 and Windows Phone 7 run on Windows Phone 8.1.
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I am wondering if windows 8 apps will run on windows 10. I am considering to build an app on windows 8.1 but wondering if windows 10 user would be able to use it.
EDIT: And Vice versa are windows 10 apps supportable on windows 8.
Thanks.
Yes :) Windows 8 and Windows 8.1 will run on Windows 10.
But no, Windows 10 apps will not run on Windows 8 or 8.1.
I'm developing app for Windows Phone 8.1. Will I be able to port it to run on Windows Phone 8?
Nope. Windows Phone 8 apps use Silverlight while Windows Phone 8.1 (Universal) apps use WinRT.
I am a newbie for WP.My windows phone 7.1 application works in windows phone 7 but the application hangs when I open it in windows phone 8. I also want to know how to test the application for compatibility in both windows phone 7 and windows phone 8.Thanks in advance.
The applications built for Windows Phone 7.x should work on Windows Phone 8. However,some applications may not work properly and you should definitely test your application on Windows Phone 8 devices.
You could also maintain two versions of your application: one for Windows Phone 7 and one for Windows Phone 8. You will be able to upgrade Windows Phone 7 project to Windows Phone 8 project, but you cannot downgrade. The best thing to do is to create a new Windows Phone 7 project and move all files from the WP8 project to the new one.
Fore more refer this
Hope it helps!
I am developping application using windows phone 8 sdk and I wonder if this application can work on device that use windows phone 8.1?
Yes, Windows Phone 8 app can continue to run on Windows Phone version 8.1.
But there are some compatibility and breaking changes you can check here.
I have an app that targets Windows Phone 8. Now I want to use this compression library which states:
Supported Platforms:
.NET Framework 4.5
Windows 8
Windows Phone 8.1
Windows Phone Silverlight 8
Portable Class Libraries
Will my app still run on Windows Phone 8 devices? Is Windows Phone Silverlight 8 the same as Windows Phone 8?
Yes, it is.
Windows Phone Silverlight 8 is the name given to Windows Phone 8 after the release of Windows Phone 8.1.
There is also Windows Phone Silverlight 8.1 and Windows Phone 8.1. The difference between these two is that Windows Phone 8.1 is compatible with Windows Store Apps, and Windows Phone Silverlight 8.1 won't be compatible with that.
You can learn more about this here: http://msdn.microsoft.com/en-us/library/windowsphone/develop/dn655121(v=vs.105).aspx