The last Redis 3.0.0 release candidate is out. The stable version is due in ~ three weeks at max, and is supposed to have only small or zero changes compared to this. Nothing should be broken at API level. Salvator was tempted to change a cluster bus structure that would break the protocol. In the end he just made structure alignment padding explicit, so Redis have room for future enhancements if needed, and the node-to-node bus protocol is still compatible with the older releases.