When Apple released the iPad mini 6 last September, it included a pretty cool feature. The buttons on the tablet change their functions depending on the direction in which the device is used. And now, with the imminent update of iPadOS 15.4, other iPad models are getting the same feature.
By default, your iPad is set to keep the volume controls in a fixed position
The tweet by mattbirchler highlights a new toggle called “fixed position volume control” that a user can toggle to if they want the volume buttons to remain in the same position regardless of the orientation of the iPad. In other words, if you’re very tuned into your ways thanks to muscle memory and don’t want the volume buttons on your iPad to change depending on how you hold it, you’ll want to turn this switch on.

Apple iPad users running iPadOS 15.4 must toggle the circular controls in order to activate the smart volume controls
To access the toggle button, with an iPad running iPadOS 15.4, go to Settings > sounds (It is in the sidebar on the left side of the screen) > Switch the volume controls to fixed position. With it off, the volume button (+) will be on the right or top side no matter how you hold your tablet. The volume button (-) will remain on the left or bottom side regardless of whether the iPad is held in landscape or portrait mode.
There’s something you should know about the iPad mini 6. Unlike most iPad models that have the volume buttons on the top left near the sleep/wake switch (this assumes the charging port is on the bottom), the iPad mini 6 has its own volume buttons On the top edge of the tablet, near the sleep/wake button.
Those with iPhone 12 or later wearing a mask will be able to unlock the device without the Apple Watch
The big news for iPhone users is that with the update, Face ID will unlock your phone even if you’re wearing a mask. Currently, you must have an unlocked Apple Watch on your wrist for this to happen. However, this new feature is not comprehensive even though it means that you do not need to have an Apple Watch to use Face ID while wearing a mask.

With the toggle switch disabled, the volume buttons change according to the orientation of the tablet
Since Face ID will now work using a smaller area of the user’s face to verify their identity, it will only work on iPhone 12 or later. You will have to set up Face ID by adding a third entry for your face and this third scan is slower than the first two. However, the speed at which Face ID unlocks your phone remains as fast as ever.