v5.4.7

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

Improvements

• Code transforms for HTTP proxy and unidirectional connect #903. See the description in docs.
• Support Kafka scram-sha-256, scram-sha-512 and aws-msk-iam SASL #912. See updated docs for Kafka consumer.

Fixes

• Centrifugo now does not log tokens when writing INFO level log entry about client disconnection caused by command processing. Thanks to @Dirk007 for submitting the fix.

Miscellaneous

• This release is built with Go 1.23.2.
• Check out the Centrifugo v6 roadmap. It outlines important changes planned for the next major release. We have already started working on v6 and are sharing updates in the issue and our community channels.
• See also the corresponding Centrifugo PRO release.