Spring Security 2.0.0 版本在4月15號發布不久，Spring Security開發小組緊接著發布了2.0.1版本
該版本主要是修改前一版本的缺陷為主，但也提供了OSGi相關方面的一些功能提升,擴展的命名空間配置支持和
使用增強的加密令牌功能。
官方網址:
Spring Security
下面是官方發布聲明：
Spring Security 2.0.1 provides a number of fixes to the recent 2.0.0 release.
It also offers some further improvements in relation to OSGi support,
extended namespace configuration, and cryptographically-strong token generation.
It is entirely backward compatible with 2.0.0 and can be used as a drop-in JAR replacement.