Si es cierto lo de la batería, ya merece las pena.

CHANGELOG 8.1.18

Full screen display devices
Optimize - Animation for the Back gesture on full screen devices (01-17)
Optimize - Full screen gestures as an alternative for screen buttons (01-17)
Optimize - A separate guide for full screen gestures (01-18)
Fix - Full screen gestures didn't work properly after rebooting (01-18)

Gallery
New - Optimize local storage to free up space (01-16)

Battery
Fix - The battery level is incorrect on status bar (01-16)
Fix - Battery is draining very fast when the device is in idle mode (01-16)

Camera
Fix - The camera interface is not displayed correctly when the language is Arabic (01-16)

Settings
Fix - There are two Security in Accessibility settings (01-16)

Sounds
New - New system sounds