> Markdown version of [Advanced](https://vaadin.com/docs/next/tools/collaboration/advanced). Section index: [llms.txt](https://vaadin.com/docs/next/tools/llms.txt)

# Advanced

- [Connection Context](https://vaadin.com/docs/next/tools/collaboration/advanced/connection-context.md)
- [Topic API](https://vaadin.com/docs/next/tools/collaboration/advanced/topic-api.md)
- [Collaboration List](https://vaadin.com/docs/next/tools/collaboration/advanced/collaboration-list.md)
- [External Servlets](https://vaadin.com/docs/next/tools/collaboration/advanced/integrating-external-servlets.md)
- [Clustering Support](https://vaadin.com/docs/next/tools/collaboration/advanced/backend-api.md)
- [Session Replication with Kubernetes Kit](https://vaadin.com/docs/next/tools/collaboration/advanced/serialization.md): Best practices to achieve session replication when using Kubernetes Kit.