There is a software update being pushed to OnePlus One owners (by CyanogenMod) that addresses dome security flaws, a touchscreen problem and the occasional black bar issue that sometimes randomly appeared.
It's a small 87.4MB Over the Air (OTA) update that is being slowly rolled out. If you haven't already received it, it will be available shortly.
Here’s a comprehensive list of changes you’ll find in this update:
- Fixed issues with memory causing screen artifacts
- Fixed issues with random reboots and instability
- Fixed issues with WiFi and modem crashes
- Fixed issues with Filesystem
- Fixed issues with “black bar”
- Fixed issues with persist partition corruption
- Fixed issues with AT&T VoLTE
Source: OnePlus Forum (link)