Redis 4.0.9 已发布，发布说明显示，该版本新增了一些有趣的功能，也修复了重要的关于 AOF 的 bug。
关于修复 AOF 严重的 bug 的详细描述请查看更新说明。
其他更新
Bug 修复
Latency monitor could report wrong latencies under certain conditions.
AOF rewriting could fail when a backgronud rewrite is triggered and at the same time the AOF is switched on/off.
Redis Cluster crash-recovery safety improved.
Other smaller fixes (check commnits).
新特性
Redis Cluster has now the ability to configure certain slaves so that they'll never attempt a failover.
Keyspace notifications API in modules.
RM_Call() is now faster by reusing the same client.
Tracking of the percentage of keys already logically expired but yet not evicted.
Other smaller improvements (check commits)
下载地址：https://redis.io/download
Redis 是一个高性能的 key-value 数据库。Redis 的出现，很大程度补偿了 memcached 这类 key-value 存储的不足，在部分场合可以对关系数据库起到很好的补充作用。它提供了 Python，Ruby，Erlang，PHP 客户端，使用很方便。
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Redis 4.0.9 发布，修复关于 AOF 严重的 bug 和新增功能
Redis 4.0.9 已发布，发布说明显示，该版本新增了一些有趣的功能，也修复了重要的关于 AOF 的 bug。
关于修复 AOF 严重的 bug 的详细描述请查看更新说明。
其他更新
Bug 修复
Latency monitor could report wrong latencies under certain conditions.
AOF rewriting could fail when a backgronud rewrite is triggered and at the same time the AOF is switched on/off.
Redis Cluster crash-recovery safety improved.
Other smaller fixes (check commnits).
新特性
Redis Cluster has now the ability to configure certain slaves so that they'll never attempt a failover.
Keyspace notifications API in modules.
RM_Call() is now faster by reusing the same client.
Tracking of the percentage of keys already logically expired but yet not evicted.
Other smaller improvements (check commits)
下载地址：https://redis.io/download
Redis 是一个高性能的 key-value 数据库。Redis 的出现，很大程度补偿了 memcached 这类 key-value 存储的不足，在部分场合可以对关系数据库起到很好的补充作用。它提供了 Python，Ruby，Erlang，PHP 客户端，使用很方便。