经过超过4个月的开发、测试，Infinispan 5.1.0 正式版终于发布了，包含很多很重要的新特性，例如：

• Optimistic vs pessimistic locking separation, single node locking and lock reordering
• Asymmetric cluster supports
• Fine-grained atomic maps

改进方面：

• Move to Stax XML parser and new programmatic configuration
• Hot Rod protocol 1.1 to provide better support for environments with virtual nodes enabled
• Startup performance
• Push-based state transfer for replicated caches

如果你是 5.0 版本用户，可参考升级指南。