Here's what's new and improved in the new BBM Android app update:
- Support for Android 5.0 Lollipop
- Send stickers in group chats!
- See when a contact has received and viewed your sent pictures.
- Timed pictures and messages can now be viewed multiple times until the timer expires
- Added a new 60 second timer option
- Landscape mode
- Add a photo or attachment from your SD card
Source: Inside BlackBerry