Windows Phone 8.1 Dev Preview - "Critical Update" 8.10.14203.306

Windows has released a new critical update (build 14203) that will be installed automatically on all developer preview edition of Windows Phone 8.1

This is the second "critical update" released in a month and this time seems to target specifically for Battery Saver app as 2 of its new features required the latest build.



Battery Saver app (update 1.0.14201.0) was released the day earlier with new Live Tile feature that require the latest update to be installed (build 14203) as what is stated in the changelog below.

Whats New:
- Foreground vs Background metrics:
usage bars now show foreground and background showing you how much power a particular app consumes whether ypu're using it or not using it
-Time Filters: We've added a filter also in the usage view where you can now specify the timeframe of data to look at. Can now show data from the last day, 2 days or a week
- What Does Battery Saver do anyway?:
Re-worded the settings page to more clearly indicate what a battery saver mode does
- Real Time Live Tile: 
If you pin the battery saver app to start, it now updates in real time (Requires Build 8.1.14230 or Higher)
- Quick Settings: You can now add battery saver to the quick settings menu and cycle through the battery saver option here (Requires Build 8.1.14203 or higher)
- Turn on until next charge: We added a new option to let users turn on battery saver until next charge!
Improve Battery usage scaling: The usage data now scales to actual device battery capacity with full width mapping to 100% capacity. Additionally, the bars now use a logarithmic scaling algorithm to make the more visible when usage is small for a particular app"

Seems the latest update was to accommodate API for the latest version for battery savers as we could not find any change log for this build.

If you guys notice any other change other than for Battery Saver, please leave a comment below.