The test is included in software update v40.
Image: Meta

Meta has been on a multiyear push with Messenger's end-to-end encryption (E2EE) features, and it is now starting to test E2EE messaging with its quest virtual reality headsets. Meta is testing optional E2EE for one-on-one messages and calls in virtual reality with the new v40 software update, but it's unclear how many people are included in the test or how to turn on the feature.

There are a lot of new features in the v40 update. There are new audio accessibility options, including the ability to adjust the audio balance of the left and right audio channels and a mono audio feature that lets you hear the same audio on the left and right speakers.

You will now be able to lock individual apps behind a pattern, which could be a useful way to prevent access to apps that you don't want a child to play with. You couldn't lock the entire headset behind a pattern.

Here’s what the new per-app lock pattern feature looks like.
GIF: Meta

You will be able to see visual representations of more physical keyboards in virtual reality as long as they are connected via Bluetooth. You will be able to see representations of the Apple Magic Keyboard with a numeric keypad with v40, which was first supported by this feature.