为什么Oracle每次发布2个版本JDK？
Why does Oracle publish 2 versions of JDK each time?
在这个问题的时候，如果你想下载Oracle JDK，你可以下载v8u91 AND v8u92。
为什么有 2 个版本？
较低版本是更保守的构建，更适合生产。更高版本有更多优化，这对开发（可能是生产）来说很好，并允许他们发布他们想发布但尚未经过充分测试的优化和功能。
http://www.oracle.com/technetwork/java/javase/downloads/index.html
Java SE 8u92 is a patch-set update, including all of 8u91 plus additional features (described in the release notes).
SHA224 removed from the default support list if SunMSCAPI enabled
SunJSSE allows SHA224 as an available signature and hash algorithm for TLS 1.2 connections. However, the current implementation of SunMSCAPI does not yet support SHA224. This can cause problems if SHA224 and SunMSCAPI private keys are used at the same time.
To mitigate the problem, we remove SHA224 from the default support list if SunMSCAPI is enabled.
See JDK-8064330.
New JVM Options added: ExitOnOutOfMemoryError and CrashOnOutOfMemoryError
Two new JVM flags have been added:
ExitOnOutOfMemoryError - When you enable this option, the JVM exits on the first occurrence of an out-of-memory error. It can be used if you prefer restarting an instance of the JVM rather than handling out of memory errors.
CrashOnOutOfMemoryError - If this option is enabled, when an out-of-memory error occurs, the JVM crashes and produces text and binary crash files (if core files are enabled).
See JDK-8138745.
简而言之，如果您要将一个版本快速投入生产，请使用较低版本，或者从不将新版本快速投入生产，请使用较高版本并用它测试您的应用程序。
在这个问题的时候，如果你想下载Oracle JDK，你可以下载v8u91 AND v8u92。
为什么有 2 个版本？
较低版本是更保守的构建，更适合生产。更高版本有更多优化，这对开发（可能是生产）来说很好，并允许他们发布他们想发布但尚未经过充分测试的优化和功能。
http://www.oracle.com/technetwork/java/javase/downloads/index.html
Java SE 8u92 is a patch-set update, including all of 8u91 plus additional features (described in the release notes).
SHA224 removed from the default support list if SunMSCAPI enabled SunJSSE allows SHA224 as an available signature and hash algorithm for TLS 1.2 connections. However, the current implementation of SunMSCAPI does not yet support SHA224. This can cause problems if SHA224 and SunMSCAPI private keys are used at the same time.
To mitigate the problem, we remove SHA224 from the default support list if SunMSCAPI is enabled.
See JDK-8064330.
New JVM Options added: ExitOnOutOfMemoryError and CrashOnOutOfMemoryError Two new JVM flags have been added:
ExitOnOutOfMemoryError - When you enable this option, the JVM exits on the first occurrence of an out-of-memory error. It can be used if you prefer restarting an instance of the JVM rather than handling out of memory errors.
CrashOnOutOfMemoryError - If this option is enabled, when an out-of-memory error occurs, the JVM crashes and produces text and binary crash files (if core files are enabled).
See JDK-8138745.
简而言之，如果您要将一个版本快速投入生产，请使用较低版本，或者从不将新版本快速投入生产，请使用较高版本并用它测试您的应用程序。