Redisson 2.2.20 发布了，Redisson 是基于Redis服务之上构建的分布式、可伸缩的Java数据结构，高级的Redis客户端。【redis官方推荐】。
该版本改进日志如下：
Fixed - NPE during pubsub re-subscription (regression since 2.2.18)
Fixed - RSortedSet doesn't work in cluster mode (regression since 2.2.16)
Fixed - PubSub connection pool initialization in cluster mode
Fixed - NPE during pubsub usage in cluster mode (regression since 2.2.18)
下载地址：https://github.com/mrniko/redisson/archive/redisson-2.2.20.tar.gz
来自:开源中国社区
