Tomcat 9.0.0.M18 (alpha) 发布了，与 9.0.0.M17 比较，值得关注的变更有：

• Updates to the early access version of the Serlet 4.0 API to align it with the most recent discussions in the Servlet EG

• Support for Java 9 during annotation scanning

• Enable ALPN (and hence HTTP/2) for NIO and NIO2 connectors when using JSSE for TLS on Java 9

• Update Tomcat Native to 1.2.12 to pick up the latest Windows binaries built with OpenSSL 1.0.2k

本次更改的所有详细信息以及所有其他更改都可在更新日志中查看。

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