OnePlus has released fourth OxygenOS open beta update for the OnePlus 6T and beta 12 for the OnePlus 6 that brings several improvements, including new quick reply support in landscape mode so that you can reply to new messages when you receive a message from WhatsApp or other landscape apps. The update also improves Gaming mode, brings screenshot optimizations and adds OnePlus Laboratory to the OnePlus 6 which lets you enable new Smart Boost feature that improves app and game loading times by optimizing the RAM.