struts2升级到2.3.14.2版本 怎么升级？

我按照以前的方法设置了web。xml里面的 过滤波器         
         org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
  
但是 设置完了过后还是提示：
**************************************************************************
*                                 WARNING!!!                              *
*                                                                         *
* >>> ActionContextCleanUp <<< is deprecated! Please use the new filters! *
*                                                                         *
*             This can be a source of unpredictable problems!             *
*                                                                         *
*                Please refer to the docs for more details!               *
*              http://struts.              *
*                                                                         *
***************************************************************************
   那位能有完整的升级指导，或者针对这个问题指导！