v5.4.4

Centrifugo is an open-source scalable real-time messaging server. Centrifugo can instantly deliver messages to application online users connected over supported transports (WebSocket, HTTP-streaming, SSE/EventSource, GRPC, WebTransport). Centrifugo has the concept of a channel – so it's a user-facing PUB/SUB server.

Centrifugo is language-agnostic and can be used to build chat apps, live comments, multiplayer games, real-time data visualizations, collaborative tools, etc. in combination with any backend. It is well suited for modern architectures and allows decoupling the business logic from the real-time transport layer.

Several official client SDKs for browser and mobile development wrap the bidirectional protocol. In addition, Centrifugo supports a unidirectional approach for simple use cases with no SDK dependency.

For details, go to the Centrifugo documentation site.

What's changed

Fixes

• Do not count no pong disconnect cases in centrifugo_client_ping_pong_duration_seconds histogram – as this resulted into tracking negative values

Miscellaneous

• Release is built with Go 1.22.5
• Check out Centrifugo v6 roadmap issue. It outlines some important changes planned for the next major release. The date of the v6 release is not yet specified.
• See also the corresponding Centrifugo PRO release.