While Microsoft is currently focus on getting ready the desktop version of Windows 10, another build of Windows 10 Mobile apparently has leaked. This time around, Windows 10 Mobile build 10158 found its way outside the walls of Redmond, but the changes aren’t very significant, though they are important, according to the site msmobile.pl build 10158 for phones includes performance, reliability, and battery life improvements.

However there are a few visual changes in Windows 10 Mobile build 10158. For example, Microsoft Edge and Windows Store tiles now seem to feature transparency. The volume sliders have slightly rounded edges, and the wallet is back with support for loyalty and rewards cards, tickets, and boarding passes.

The People app Live Time now has a new animation effect, and the Camera app is capable of shooting videos at 120FPS at 728 x 576 pixels resolution.

On a related topic, some people running build 10149 have shown the polarizing circular avatars floating animation floating on the People app Live Tile. However, not everyone is seeing the same animation, as such chances are that we’re just coming across an A/B test by Microsoft. Also, the new animation hasn’t appeared on build 10158 just yet.

Windows 10 for desktop is launching on July 29th, and while the mobile version of the operating system won’t release at the same time, Microsoft is reportedly on track to release Windows 10 Mobile on late September, but the company hasn’t confirm a date.

Source msmobile.pl via Windows Central