Test on WP 7.8, release for WP 8?

Hi,
if i compile application and test on WP 7.8 (Lumia 800) (VS 2010)
shall i be able to publish to WP 8


Regards
Wael

Hi!
Windows Phone 8 can run all Windows Phone 7.X applications. But if you want to make use of Windows Phone 8 features, you need to target Windows Phone 8 runtime and cant test on Windows Phone 7.X devices.

[QUOTE=josueyeray;905833]Hi!
Windows Phone 8 can run all Windows Phone 7.X applications. But if you want to make use of Windows Phone 8 features, you need to target Windows Phone 8 runtime and cant test on Windows Phone 7.X devices.[/QUOTE]

Mind that if you use Windows Phone 8 specific features, like Live Apps, it wont work on Windows Phone 7.x devices.

My take on this is: use Windows Phone 7.x as a target unless you really need to target specific Windows Phone 8 features. If you dont need to target Windows Phone 8 specific features, by targeting Windows Phone 7.x you will be targeting a larger audience and devices.

You can target 7.8 with "some" specific WP8 new features (new tiles, new tasks ...)
I suggest you look at this awesome fresh made library by one of the Nokia Dev Champs [url]http://mangopollo.codeplex.com/[/url]
With that you can easily create new tiles(iconic, cyclic , flip ...) and call WP8 specific launchers on 7.8 apps

[QUOTE=WPMorocco;905869]You can target 7.8 with "some" specific WP8 new features (new tiles, new tasks ...)
I suggest you look at this awesome fresh made library by one of the Nokia Dev Champs [url]http://mangopollo.codeplex.com/[/url]
With that you can easily create new tiles(iconic, cyclic , flip ...) and call WP8 specific launchers on 7.8 apps[/QUOTE]
Sounds useful - worth adding to [URL="http://www.developer.nokia.com/Community/Wiki/Toolkits_and_Libraries_for_Windows_Phone"]Toolkits_and_Libraries_for_Windows_Phone[/URL]?

[QUOTE=hamishwillee;905962]Sounds useful - worth adding to [URL="http://www.developer.nokia.com/Community/Wiki/Toolkits_and_Libraries_for_Windows_Phone"]Toolkits_and_Libraries_for_Windows_Phone[/URL]?[/QUOTE]
Definitely worth it! Personally , I'm using it

[QUOTE=WPMorocco;906034]Definitely worth it! Personally , I'm using it[/QUOTE]
Can I encourage you to do so? You know far more about it than I do. If not, let me know and I'll do it.

Sure, I will

You can use WP7 xap on WP8.
But if you re-compile your WP7 application on WP8, you can have compatibility errors because some APIs changed!

Yes , the WP7 should generally work fine on Windows Phone 8 :)

[QUOTE=waelfarouk;905826]Hi,
if i compile application and test on WP 7.8 (Lumia 800) (VS 2010)
shall i be able to publish to WP 8


Regards
Wael[/QUOTE]


In order to publish it as WP8 app, you just need to switch your compiler to WP8 (Option will be present after installing WP8 SDK) and eureka! You'll have your WP7 App ready to hit markets of WP8!
I have compiled my 3 WP7 apps to WP8 in the similar manner!
Now both can run on WP devices! Enjoy the best of both worlds!