You can now see more of your notifications. Swipe on the Lock screen to unlock if you have a secure screen lock.
Before, notifications and the time appeared on the same screen as the secure screen lock.
Now, the secure screen lock will have its own screen so you have more room to see your notifications.
See the secure screen lock when you tap a notification or swipe on an empty area on the Lock screen.
Then, you can enter your knock code, pattern, PIN or password to unlock.