We renamed discussions to conversations. This made more sense to us as it can be more than just a discussion, it can also be used for elaborate announcements or project updates. We now have 3 tools to communicate with your team, all of them slightly different:

Chat - Quick and low-key messaging
The Feed - A great and fun way to update teammates
Conversations - Meant to start an in-depth and engaging conversation or discussion

Besides the name, we also changed the user experience. It's now easier to access and switch between conversations. We're always looking for ways to remove friction and enhance your productivity and engagement.