Oracle JDK 7u40 发布了，包含如下改进：
- Java Mission Control (JMC), an advanced monitoring and diagnostics tool inherited from JRockit is now fully supported on JDK 7. This is a commercial feature;
- Part of JMC, Java Flight Recorder enables you to record events and metrics during runtime and extract them at will;
- support for the Retina display with Swing/AWT and JavaFX;
- new JDK binary for hardfloat Linux/ARM, for ARM-based micro servers and development boards. With this, JDK 7 now officially supports the Rasbian Linux distribution (for Raspberry Pi);
- a new Deployment Rule Set feature to enable fine granular controls for execution of Applet and WebStart applications;
- security feature enhancements for applets, JAXP and x.509 certificates.
完整的 bug 修复列表：bug fixes.
官方发行说明：http://www.oracle.com/technetwork/java/javase/7u40-relnotes-2004172.html
引用来自“梅公子”的评论
引用来自“wgcn”的评论
引用来自“梅公子”的评论
mozilla终于差点赶上chrome，现在google又出这个方式来出版本号，mozilla要哭了。
Limited Update包含新功能和非安全修正，版本號是20的倍數
Critical Patch Updates（CPUs）只包含安全修正，版本號將是上一個Limited Update版本號加上五的倍數後的奇數
----维基百科
引用来自“李诺”的评论
抵制Java，原因不讲 >-<
引用来自“梅公子”的评论
mozilla终于差点赶上chrome，现在google又出这个方式来出版本号，mozilla要哭了。
终于把曾经对的设置又一次改对了。