CDI 2.0 Beta1 发布了。JSR-299 规范简称 CDI（Contexts and Dependency Injection，上下文与依赖注入）。经过两年多的努力，CDI 2.0 终于来了。 其功能列表已完成，可以下载针对RI（Weld 3.0 Beta1）的Beta版。 CDI 2.0 包含了很多关于平台的重要更新：
The spec was split into 3 parts to add the support for Java SE.
API to boot CDI in Java SE.
Observers (i.e. events) ordering.
Configurators for major SPI elements
Possibility to configure or veto observer methods.
Make possible to apply interceptor on producers.
Alignment on Java 8 features (streams, lambdas, repeating qualifiers)
