Outlook implements password enforcement using Exchange ActiveSync. If your company email policy requires that devices have a password in order to sync mail, Outlook will enforce this at the device level.
On iOS devices, Outlook will check to make sure a passcode is properly set. In the event a passcode is not set, it will prompt users to set one up in iOS settings.
On Android devices, Outlook will enforce screen lock rules. Further, Google provides controls that allow Outlook to honor additional Office 365 and Exchange policies regarding password length and complexity requirements and the number of allowable screen-unlock attempts before wiping the phone. It will also encourage storage encryption if it is not enabled.
Devices that do not support these security settings will not be able to connect to an account.
In addition to this security enhancement several new features have been added:
Outlook for iOS: You can now disable the app’s default Conversation view, which groups all messages from the same thread together.
Outlook for Android: You can now customize what happens when you swipe left or right on an email message or other item. To customize these gestures, visit Settings, Swipe Options.
While OneNote is available on virtually every platform only some tablets have had one of its best features: Handwriting. Microsoft has now released an update to the iPad version to allow handwriting and drawing within your notes.
Considering the iPad is among the most popular tablets this feature is overdue.
Source: Office Blogs