The Windows Phone SDK Update for Windows Phone 8.0.10322 is available for download. The update adds four new 8.0.10322 emulator images (WVGA, WVGA 512 MB, WXGA and 720p). Using this update, you can test how your apps will run on devices that have build 8.0.10322 or higher of Windows Phone 8.
With the SDK update installed, you automatically get access to these new Windows Phone 8.0.10322 emulator images in XAML Spy. There’s no need to update your existing XAML Spy installation, although using the latest version is always a smart thing.
Configure the default Windows Phone target device (settings > windows phone) and select the new emulator images for your Windows Phone apps as is demonstrated in the image below. Alternatively you can select the Windows Phone target device in the add app wizard.