The update can be downloaded for free as it has become available to all eligible devices, and this can be done by entering the Settings application, then General, then Software Update.
The new update added the option to use the facial recognition sensor while wearing the muzzle, as there is no longer a need to remove it, because the sensor is now reading the areas around the eyes in order to identify the user’s identity.
Apple also released the iPadOS 15.4 update for tablets, and it came with a comprehensive control feature that allows controlling multiple Macs and iPads with the same mouse/keyboard.
The new updates introduced an additional 37 emojis, and also established the “Tap to Pay on iPhone” feature, which allows iPhone phones to accept payments through the Apple Pay payment application.
Most important additions:
Face ID – is the facial recognition feature while wearing a mask, on iPhone 12 and newer phones.
Emoji – There are new emojis like faces, hand gestures, and household items. The new emoji allows for a handshake to be displayed with a different skin tone for each hand.
Siri – On iPhone XS, iPhone XR, and iPhone 11 or later, Siri can provide time and date information while offline.
Vaccine Cards – The update now allows uploading and storing verifiable copies of MERS-CoV vaccine certificates, lab results, and other documents.