This beta update is not all about one-handed mode on the OnePlus 7T, of course. There are quite a few entries in the changelog, and they include System, Bluetooth, Shelf, and Phone section updates.
This beta update brings back one-handed mode to the OnePlus 7T
Let's talk a bit more about the one-handed mode, though. It's not on by default, it seems, you need to enable it. In order to do that, head over to 'Settings', and then tap 'Buttons & Gestures'. Once you do, you'll see the 'Quick Gestures' option, where you'll find one-handed mode.
This update also brings a shortcut to switch from Dark Mode in the notification bar. So it's essentially a quick toggle that you can include there, same as WiFi, mobile data, Bluetooth, and so on.
The company has also fixed the sharp edges of application cards in the recent apps screen. The screen flashing issue after locking the device has also been fixed.
The OnePlus Brand Logo has been updated, and the Android Security Patch for June 2020 has been released as well. Now, in terms of Bluetooth, the company adapted to Bluetooth hearing aid app connection under the Android 10 Audio Streaming for Hearing Aid (ASHA) agreement.
OnePlus refined the step counter's accuracy for recording movement. That is a change for the OnePlus Shelf. The last entry in the changelog has to do with the 'Phone' section. The frequently dialed contacts will now be available in the dialing interface.
The two biggest changes in this update are the one-handed mode, and the addition of a dark mode toggle shortcut. Users have been asking for both of those for a while now.
The OnePlus 7T even had one-handed mode in an earlier beta build, but the company decided to remove it for whatever reason. Perhaps it was buggy or something, but it's back now.
We hope that the one-handed mode will arrive to stable builds of OxygenOS soon
This gives us hope that one-handed mode will make its way to a stable build in the near future. If it does, then it'll probably arrive to other OnePlus 7 and 7T devices, along with the OnePlus 8 series. Some older models may get it as well.
This update is rolling out to those of you who are already running beta software. You'll get it OTA (over-the-air), as per usual. Those of you who are running a stable build, you'll need to install it manually.
Installing this update will not delete your data. Do note that your data will be deleted when you end up returning to the stable channel, though. So, if you don't want that to happen, don't install it.
UPDATE: This update arrived for the OnePlus 7T Pro as well.