Both iOS 15.4 and iPadOS 15.4 were released on Monday, March 14. The new green iPhone 13, the alpine green iPhone 13 Pro and the new iPhone SE will come with iOS 15.4 preloaded, according to Apple.
You can download iOS 15.4 by going to Settings > General > Software Update > Download and Install. The 15.4 update is more than a gigabyte, so make sure you're connected to Wi-Fi.
Apple has updated its Face ID feature to be usable on the iPhone 12 and newer models even while wearing a mask. Because the feature uses a smaller portion of your face to verify your identity.
Your phone will even prompt you if it needs you to look more directly at the screen. The updated feature should work for people who wear glasses, but it won't work with sunglasses.
There are 37 new emoji in the update, including new options for pregnant people, hands forming a heart shape, a salute and -- my personal favorite -- a lip-biting emoji.
The operating system update also brings new safety-focused updates to AirTags, which have been under the spotlight after reports of the devices being used to stalk people.
The 15.4 update also changes the emergency call shortcut "call with five presses" from a default setting to an option, meaning the feature won't be enabled unless you choose to allow it.
The 15.4 update also changes the emergency call shortcut "call with five presses" from a default setting to an option, meaning the feature won't be enabled unless you choose to allow it.
Another feature included is the ability to copy text from objects using the camera while in the Notes or Reminders apps. iOS 15.4 also fixes a bug related to recordings of Siri interactions.
All these same features come to iPads via iPadOS 15.4. iOS 15.4 follows iOS 15.3.1, which was released last month to patch a security vulnerability in iPhones and iPads.