OnePlus has started rolling out a new update to its OnePlus 2 smartphone. Arriving as OxygenOS version 3.5.8, the update brings along a couple of bug fixes and the Android security fixes for March. The update fixes persistent network drop issues and data roaming issue in certain countries. The echo issue that was observed during video calls in Duo App has been fixed as well. Finally, Audio compatibility has been improved, and some general bug-fixes are also included. Source | Via
Source: http://www.gsmarena.com/new_oneplus_2_update_brings_latest_security_patch_other_changes-news-24114.php