Microsoft releases Windows Phone 7.8 SDK

At the moment, it looks like a lot of older Windows Phone 7.5 smartphones will be able to download an update to Windows Phone 7.8 by the end of the month. Today, Microsoft gave Windows Phone app developers a way to prepare for the launch of the update.

The official Windows Phone developer blog has announced that the SDK for Windows Phone 7.8 is now available for download. The SDK includes two new emulators; one of them allows app makers to simulate how their apps work on a normal Windows Phone 7.8 smartphone, while the other emulator simulates apps running on a smartphone with just 256 MB of RAM.

Apps that run on Windows Phone 7.8 can now be made to support different Live Tile sizes, including wide and small tiles. Microsoft adds:

Most importantly, 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.

The release of the SDK likely means that Microsoft is about to pull the trigger on the 7.8 update and release it to the general public.

Source: Windows Phone blog | Image via Microsoft

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16 Comments

Got an update for my branded Lumia 800 from NSU for Retail, no problems, original soft (still branded), don't need wait for carriers and MS

wrack said,
I am going to check NaviFirm everyday now Not going to wait for the carrier.

Why? It has been on NaviFirm for a very long time now.

Do you have the specifics? I would love to give that a crack

I assume I can use the black one from the list below.

059P355: RM-801 VAR APAC1 IN CV GWHITE
059L975: RM-801 VAR APAC1 IN CV MBLACK
059M144: RM-801 VAR APAC1 IN CV MCYAN
059M145: RM-801 VAR APAC1 IN CV MMAGENTA

Edited by wrack, Jan 23 2013, 2:36am :

Ah I see. My confusion comes from bad wording on the blog post. It lists the following:


The SDK update requires an existing installation of the Windows Phone SDK:

Windows Phone SDK 7.1 (7.1 or 7.1.1)
Windows Phone SDK 8.0

But it should read 7.1.1 or 8.0. I read it as needing both and the WP 8 SDK has a Windows 8 requirement.

But it should read 7.1.1 or 8.0. I read it as needing both and the WP 8 SDK has a Windows 8 requirement.

Ah lol. Didn't realize that the WP8 sdk requires W8...pretty stupid if you ask me.

-Razorfold said,

Ah lol. Didn't realize that the WP8 sdk requires W8...pretty stupid if you ask me.

Yeah requiring the Windows Runtime to run the WP8 emulator which is also Windows Runtime is pretty stupid.

Yeah requiring the Windows Runtime to run the WP8 emulator which is also Windows Runtime is pretty stupid.

What? Running a linux emulator doesn't require linux does it? So why can't MS code the emulator to run on win32?

Oh wait they can.

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