OnePlus has released the stock version of Android 4.4.4 for the OnePlus One. The device currently features a customized version of Android with Cyanogenmod (CyanogenMod 11S ROM.) but for those who are looking for a 100% pure Android experience can now do so by installing this ROM.
However, OnePlus does warn that by installing this RÖM you do remove the warranty of your device. There are also several known issues as the Gyroscope may not work for all devices
and the Encryption features and VPN do not work.