Apache Tomcat发布8.0.9版本，同时这个版本也是8.0的第一个stable版本。Tomcat 8需要至少JDK7以上。
值得注意的更新如下： Support for Java Servlet 3.1, JavaServer Pages 2.3, Java Unified Expression Language 3.0 and Java WebSocket 1.0. The default connector implementation is now the Java non-blocking implementation (NIO) for both HTTP and AJP. A
new resources implementation that replaces Aliases, VirtualLoader,
VirtualDirContext, JAR resources and external repositories with a
single, consistent approach for configuring additional web
application resources. The new resources implementation can also be
used to implement overlays (using a master WAR as the basis for
multiple web applications that each have their own customizations).
Apache Tomcat 8.0.9 包括了 8.0.8 版本的 bug 修复和大量改进，相对于 8.0.8 版本： Start to move towards RFC6265 for cookie handling Better error handling when the error occurs after the response has been committed Various Jasper improvements to make it easier for other containers (e.g. Jetty) to consume
完全改进：http://tomcat.apache.org/tomcat-8.0-doc/changelog.html 下载：http://apache.org/dist/tomcat/tomcat-8/v8.0.9/ | 
