10.0.12554A new Windows 10 for Phones build 10.0.12554.63 has leaked in a hands-on video. The build is claimed to be the next preview build to be released and the video shows that it packs many changes and even the promised “Office universal apps preview“. The claim has some weight as it comes from the same source who have leaked build 10.0.15234 before its release as the second preview.

As the Office preview is supposed to come by end of the month, so it may seem we will see this build arriving by end of this month. Check the video below. These are some of the changes one can notice in the video.

Build 10.0.12544.63 changelog:

Transparency Slider

Many more theme color options

Revamped Store

Office universal apps preview

Supre fast Lumia Camera 5.5

Thanks Xio-Feng for the tip. Cheers!!