The much touted, affordable, flagship killer phone OnePlus2 was being bogged down by a "not so refined" Oxygen OS. Thankfully, after a long wait - Android Marshmallow 6.0.1 based OxygenOS 3.0.2 update for OnePlus2 has started to rollout for users now via OTA update in a phased manner.
"This update is packed with new features and enhancements. One thing to note is that this update will clear your stored fingerprints. If you have fingerprint authentication setup, you will need to re-enroll again before use."