Download Windows Phone SDK 7.8 Update

After launching Windows Phone 8 and the subsequent SDK for developers, Microsoft has long been teasing existing Windows Phone (WP) consumers about the WP 7.8 update which gives devices running the existing WP 7.5 a fresh look and inherits a few features from WP 8. Tiptoeing on the same line, Microsoft today announced the Windows Phone SDK 7.8 update.


This new SDK update will allow developers with existing WP 7.5 apps to test how their apps will behave and run when on a device with WP 7.8. In simple words, developers can now test their Windows Phone 7.5 apps in a Windows Phone 7.8 environment and be ready to publish to the new platform as and when it launches.

This Windows Phone 7.8 SDK update will add the following capabilities to your machine:

  • Windows Phone 7.8 emulator: This OS image emulates your app running on a 512-MB device running Windows Phone 7.8 (build 8858)
  • Windows Phone 7.8 256MB emulator: This OS image emulates Windows Phone 7.8 (build 8858) running on a 256-MB device
  • If you’re running a Windows Phone SDK 7.1 installation, the update will also download and install the Windows Phone SDK 7.1.1 update onto your machine as part of the update

However, to clear confusions about this being a proper WP SDK 7.8, Microsoft states:

Any Windows Phone apps that you build using the Windows Phone SDK (with this update installed) still target and run on Windows Phone 7.5. This update simply makes it easier to test how your apps appear on devices running Windows Phone 7.8.

This is an encouraging sign that Microsoft is gearing up to launch the Windows Phone 7.8 update for existing users. Windows Phone 8 was launched with some pretty interesting and cool features and paved the way for the launch of remarkable mobile devices like the Nokia Lumia 920 and HTC 8X.

You may want to download the appropriate Windows Phone SDK:

Windows Phone SDK 7.1 | Windows Phone SDK 7.8 update | Windows Phone SDK 8.0

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