Apache Flink 1.4.0 发布了。ApacheFlink 是一个开源的流处理框架，应用于分布式，高性能，始终可用的，准确的数据流应用程序。
此版本更新内容： Sub-task[FLINK-3551] - Sync Scala and Java Streaming Examples [FLINK-3582] - Add Iterator over State for All Keys in Partitioned State [FLINK-5270] - Refactor the batch Scala-expression Table API tests [FLINK-5272] - Refactor the stream Scala-expression Table API tests [FLINK-5509] - Replace QueryableStateClient keyHashCode argument [FLINK-5604] - Replace QueryableStateClient constructor
Bug[FLINK-3182] - TaskManagersHandler can block web frontend [FLINK-4047] - Fix documentation about determinism of KeySelectors [FLINK-4048] - Remove Hadoop dependencies from ExecutionEnvironment [FLINK-4228] - YARN artifact upload does not work with S3AFileSystem [FLINK-4500] - Cassandra sink can lose messages [FLINK-4660] - HadoopFileSystem (with S3A) may leak connections, which cause job to stuck in a restarting loop [FLINK-5070] - Unable to use Scala's BeanProperty with classes
完整的发行说明和发布主页。 该版本可从以下网址下载： https://flink.apache.org/downloads.html | 
