What’s up with WhatsApp? A lot.

WhatsApp, the free and mega-popular cross-platform messaging app, was updated today in the Windows Phone Store.

The changes in version 2.9 include a great new look and handy new features. For starters, there’s now a lock screen notification option, so you can see new messages at-a-glance. Your chats are also now backed up every 24 hours, so any exchanges you accidentally delete can be restored easily. And the new LiveTile design is sleek and sophisticated.

If you’re new to the app, download it and give it a whirl.

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