Download Windows Phone SDK Update with Windows Phone 7.8 Support

Windows Phone SDK Update for Windows Phone 7.8, an optional update that adds two new Windows Phone 7.8 emulator images to existing SDK installation released today. These two emulator images should enable you to fully test how your Windows Phone 7.5 app's Live Tiles will look and behave when they are run on a device running WP7.8.

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Microsoft has released an update to the Windows Phone SDK to support 7.8 features, which includes the ability for developers to add small, medium and large tiles to their apps.

The updated Windows Phone SDK adds two new emulator images to your existing Windows Phone SDK installation with 7.8 pre-installed, letting developers to test their live tiles without actually needing a device.

"This update supports both the Windows Phone SDK 7.1 and the Windows Phone SDK 8.0. Using this update, you can provide the Windows Phone 8 Start screen experience in your Windows Phone 7.5 apps. You can also test how your apps will run on Windows Phone 7.8 devices," Microsoft stated.

Microsoft notes that Windows Phone SDK 8.0 or Windows Phone SDK 7.1 "must be installed before you can install Windows Phone SDK Update for Windows Phone 7.8." The update adds the following to existing Windows Phone SDK installation:

  • "New Windows Phone Emulator 7.8
  • New Windows Phone Emulator 7.8 256MB
  • Functionality delivered in the Windows Phone SDK 7.1.1 Update (for Windows Phone SDK 7.1 users)."

For more information about Windows Phone 7.8, see Windows Phone developer docs

Grab the Windows Phone SDK update for Windows Phone 7.8 Download Center.

Also, the company is offering app submission tips for Windows Phone 7 and Windows Phone 8. "To better serve your needs, the Windows Phone Dev Center now offers the ability to associate multiple XAPs with the same app GUID. This means that you can create, submit and maintain different versions of your app for Windows Phone 7 and Windows Phone 8," Microsoft said in the detailed step-by-step walkthrough.

In another blog entry, Microsoft discuss Enter Light Up--an easy way to add Windows Phone 8 Live Tile functionality to a Windows Phone OS 7.1 app so that when it's run on a Windows Phone 7.8 or Windows Phone 8 device it "lights up" the new templates! with great new Live Tile features to make the app even more alive.

"What we're discussing here is the ability to maintain your existing Windows Phone OS 7.1 app code base and, by adding some conditional code, make that app do new things with Tiles on a Windows Phone 7.8 or 8.0 device. You don't even need multiple code blocks to deal with differences between APIs in Windows Phone 7.8 and 8.0 because there are none! The code you write works exactly the same way on both Windows Phone 7.8 and Windows Phone 8.0 devices--one code update to rule them all, as it were," Microsoft wrote.