If you had your doubts, Facebook is definitely growing up. Onstage at the company's developers conference chief executive Mark Zuckerberg said with a smile that company is no longer using the motto, "Move fast and break things." Instead, he said, he's more concerned with keeping things running. So Facebook's new motto, he said, should be "move fast and stable infra," as in infrastructure.

Sexy.

Sarcasm aside, with a billion-plus users posting more photos, videos and large files to Facebook, it does make sense that stability is key for Facebook -- even if it runs contrary to the breakneck pace of the "hacker way" that Zuckerberg used when he founded the network back as a college student. But that's not to say that Facebook isn't going to change. Here are just some of things that Zuckerberg talked about in his speech Tuesday:

Sharing: Facebook is changing the way that users share information from apps that hook to its network -- your fitness apps, your photo apps, etc. -- to make it more consistent across the Facebook universe. So the company is introducing a "share sheet" that will let you post directly to Facebook and to Messages and Groups. You can also more easily tag friends from the share menu, which should show up in a number of apps that work with Facebook.

Oculus: Onstage, Zuckerberg made a big pitch about the possibilities of  virtual reality. And Facebook's Oculus Rift, a virtual reality gaming headset, really should be seen as the next step in the sharing evolution.

Immersive video allows for even more social experiences, he said. "It's not something that you just experience passively," he said. Facebook's News Feed will support "spherical" video that gives viewers a 360-degree view of the world. At the show, the company is showing off the capability at its "teleportation station."

It's a cool idea, butcould you blame people for expecting more from something named the teleportation station?

Changes to Messenger: Facebook is also opening its Messenger app up to other developers, meaning that it will be easier for you to send more things over the chat service. Apps that were featured in the demo include Jibjab, the Weather Channel app and Giphy.

According to Zuckerberg, more than 600 million people are using the service every month, and it also accounts for more than 10 percent of all mobile calls made over WiFi. The company has been aggressive about expanding the app's capability, announcing last week that it is now possible to send money over the service.

Shopping: Going hand-in-hand with Facebook's Messenger announcements, the company also announced that it's putting a lot of focus on commerce. The company is making it possible to get confirmation of online orders into their Facebook Messenger accounts -- threads that will then give you shipping information, the option to return items, and communicate with customer service departments. Users could also "ask" the company for more information about products --  such as "Do you have this in black?" -- and get quick answers or place additional orders from within Messenger.

The Internet of Things: If you didn't already feel like Facebook was ubiquitous, the company said it wants to move beyond the computer, tablet and smartphone and into, well, everything else. The company announced that it's expanding its mobile app-building business, Parse, to cover the "Internet of Things" -- meaning that it's making it easier for developers to use Facebook's tools to build apps for smart garage doors, refrigerators and more.

This version corrects the number of Messenger users.