# Overview

- [What is coherence?](/0.10/overview/what-is-coherence.md)
- [How does coherence work?](/0.10/overview/how-does-coherence-work.md)
- [Rooms and Worlds](/0.10/overview/rooms-and-worlds.md): coherence provides two types of online replication services: Rooms and Worlds. Read about the different uses cases for each
- [Features and Roadmap](/0.10/overview/roadmap.md)
- [Release Notes](/0.10/overview/release-notes.md): Read about new features, important changes and fixes for version 0.10
- [Known Issues and Troubleshooting](/0.10/overview/troubleshooting.md): Tips on how to handle common problems