OxygenOS 3.1.0 Community Build, which is a beta build that's based on Android 6.0.1 Marshmallow, features:
- Android 6.0.1 Marshmallow goodies like Doze battery saving, App Permissions, and built-in fingerprint support
- Launcher upgrades including new icon packs, Google search bar UI customization, and new wallpaper picker
- Shelf UX improvements like Long press boards to rearrange or remove
- Settings changes including new (native Android) app permissions, and new Alert Slider settings with more customization options
- New apps including OnePlus Music Player and OnePlus Gallery
- August 1 security patches for Android
- General system performance improvement
OxygenOS 3.1.0 Community Build is now available to download for the OnePlus X through the link down below, with full instruction on how to flash it.