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Centrifugo v1.5.0 Release Notes

  • 🚀 Some upgrade steps needed to migrate to this release, see below.

    This release is a major refactoring of Centrifugo internal engine. Centrifugo now uses protobuf format while transferring data between nodes and serializing history/presence data in Redis. We expect that all those changes should not affect your working application code though as new serialization format used you may need to run FLUSHDB command if using Redis engine to remove presence/history data encoded as JSON (if you don't use presence and history then no need to do this). If you have any problems with new serialization format used by Centrifugo internally – we can consider making old JSON encoding optional in future releases. Depending on how you use Centrifugo with Redis Engine those internal changes can result in nearly the same performance (if real-time content mostly generated by users online, so messages coming to Centrifugo have to be delivered to at least one client) or up to 2x API request speed up (if your real-time mostly generated by application backend itself so some messages published in channel with no active subscribers and there is no need to do JSON encoding work).

    • Using SockJS 1.1 by default (actually as by default we use jsdelivr.net CDN version it will be latest minor release - at moment of writing 1.1.1) – this means that you need to also upgrade SockJS on client side to the same version (because some iframe-based SockJS transports require exact version match on client and server). Note that you can set desired SockJS version used by Centrifugo server via sockjs_url option (which is now by default //cdn.jsdelivr.net/sockjs/1.1/sockjs.min.js). So if you don't want to upgrade SockJS on client side or just want to fix version used or use your own hosted SockJS library (which is good if you think about old browser support and don't want to be affected by minor SockJS library releases) - use that option.
    • 🏗 centrifugo version now shows Go language version used to build binary.
    • 🐎 Performance and memory allocation improvements.