OnePlus starts rolling out the OxygenOS Open Beta 18 and 16 OTA update for OnePlus 5 and 5T that weighs around 249MB. As always, the OTA rollout is incremental, so it will take few hours or even few days to reach to all OnePlus 5 and 5T running on the Open Beta channel.

What is new in this update (OxygenOS Open Beta 18/16)? Camera – Fixed beauty mode (now applies to photos from the rear camera) – Improved stability of portrait mode for the front camera Weather – Improved stability of the Weather app System – General bug fixes and improvements OnePlus 5/5T runs OxygenOS Open Beta will get the OTA update for this update soon. Alternatively, you can use the Oxygen Updater app (unofficial) to get the update early. If you are a non-beta user and want to install the OxygenOS Open Beta 18 or 16 on your OnePlus 5 or OnePlus 5T to enjoy latest features, then you can download and install the full ROM, which weighs around 1.6GB. Downloads: OnePlus 5: OxygenOS Open Beta 18 Full ROM [here] OnePlus 5T: OxygenOS Open Beta 16 Full ROM [here] Installation Guide: After downloading the update file, install the update via stock recovery as described below. Follow this guide for details. Keep in mind that since this is a beta OS, it is possible you will run into bugs and other instabilities. (source)