Apache Pulsar 1.21.0 已发布，不过目前仍处于孵化项目阶段。这是 Pulsar 成为 Apache 基金会的孵化项目后发布的第三个版本。 1.21.0-incubating 的主要变更 [#689] Upgrade to Netty 4.1 [#846] Publish the shaded pulsar-client as the default dependency [#832] [#833] [#849] [#852] Enhancements to Kafka API wrapper to have it work with Kafka's own benchmark tools [#836] Fix to C++ partitioned consumer client [#822] [#826] Several fixes and improvements related to the namespace bundles [#848] Allow consumer to seek to message id from within Pulsar client [#903] PIP-8: Scale Pulsar beyond 1M topics [#824] Enable secure replication over TLS [#923] Upgrade to bk-4.3.1.83-yahoo to expose journalSyncData option [#807] Prevent message duplication when active consumer is changed 完整的变更列表：https://github.com/apache/incubator-pulsar/milestone/10?closed=1 下载地址 https://pulsar.incubator.apache.org/download/ apache-pulsar-1.21.0-incubating-bin.tar.gz apache-pulsar-1.21.0-incubating-src.tar.gz Source code (zip) Source code (tar.gz) Pulsar是一个高度可扩展，低延迟的分布式消息发布/订阅传递平台，具有非常灵活地消息模型和一个直观的客户端API。 雅虎的分布式消息发布平台 Apache Pulsar 发布 1.21.0下载地址
