奇数和偶数 Java 更新有什么区别？
What's the difference between odd and even Java updates?
我安装了 JDK 8u60。我检查了 Oracle website today and they have released two versions simultaneously: 8u65 and 8u66。两者都是 public 发布版本。
- 为什么要同时发布两个版本？
- 什么 conditions/reasons 会让人二选一？
来自the download page（添加重点）：
Java SE 8u65 includes important security fixes. Oracle strongly
recommends that all Java SE 8 users upgrade to this release. Java SE
8u66 is a patch-set update, including all of 8u65 plus additional
features (described in the release notes).
Oracle often does this。这完全取决于您作为客户希望如何处理风险。
Users should only use the corresponding PSU release if they are being
impacted by one of the additional bugs fixed in that version as noted in
the release notes.
8u65 有安全修复和 sets a new security "baseline" for companies to achieve Java 8 applications. 8u66 has those same security updates, plus additional bug fixes。但是，即使是错误修复有时也会导致行为发生变化，从而给用户带来兼容性问题。因此 8u66 中的更改是 可选（请注意，上面链接的基线仍然是 1.8。0_65，希望平台更稳定的公司可能更愿意只应用安全修复，这是必要的。
Oracle 当然没有义务以这种方式拆分他们的更新，但我相信他们的一些最厌恶风险的客户很高兴有这个选择。
如果您已有项目，请使用 8u65。如果您是从头开始使用 8u66。我正在安装 NetBeans 8.1，所以我使用 8u66，以防 NB8.1 代码有 8u65 中的 15 个错误中的任何一个，而 8u66 中没有解决。
我在 Haven and Hearth 上找到了这个信息：
u73(-b02) is the public release
u74(-b02) is public Bundled Patch Release (contains extra non security related fixes)
我想你只需要下载 74，那么。
这是官方的Oracle's answer:
Java CPU and PSU Releases Explained
Starting with the release of Java SE 7 Update 71 (Java SE 7u71) in
October 2014, Oracle will release a Critical Patch Update (CPU) at the
same time as a corresponding Patch Set Update (PSU) for Java SE 7.
Which Java version should I choose: the CPU or the PSU?
Oracle strongly recommends that all Java SE users upgrade to the
latest CPU release available for a release family. Most users should
choose the CPU release.
Users should only use the corresponding PSU release if they are being
impacted by one of the additional bugs fixed in that version as noted
in the release notes.
The subsequent CPU release will contain all of the fixes from the
current PSU. For this reason, organizations should test the current
PSU in their environment in anticipation of these fixes being included
in the next CPU.
What is the difference between a Java CPU and PSU release?
Java SE Critical Patch Updates (CPU) contain fixes to security
vulnerabilities and critical bug fixes. Oracle strongly recommends
that all Java SE users upgrade to the latest CPU releases as they are
made available. Java SE CPU releases are odd numbered versions (i.e.
7u71, 7u65 – see more on Java SE version numbering schemes here).
Java SE Patch Set Updates (PSU) contain all of fixes in the
corresponding CPU, as well as additional non-critical fixes. Java PSU
releases should only be used if you are being impacted by one of the
additional bugs fixed in that version. The release notes call out the
additional fixes available in Java SE PSU releases.
Is the cadence of CPU releases changing?
As before, Java SE CPU releases are scheduled for release on the
Tuesday closest to the 17th day of January, April, July and October
under the normal Oracle Critical Patch Update schedule.
Starting in October 2014 with the release of Java SE 7u71 (CPU) and
Java SE 7u72 (PSU), Oracle plans to additionally release a
corresponding PSU release along with each CPU release for Java SE 7.
PSU releases provide organizations and developers with access to
non-critical fixes in addition to the critical fixes contained in the
corresponding CPU.
使用 u73 除非你知道你需要 u74 中的错误修复。
我安装了 JDK 8u60。我检查了 Oracle website today and they have released two versions simultaneously: 8u65 and 8u66。两者都是 public 发布版本。
- 为什么要同时发布两个版本？
- 什么 conditions/reasons 会让人二选一？
来自the download page（添加重点）：
Java SE 8u65 includes important security fixes. Oracle strongly recommends that all Java SE 8 users upgrade to this release. Java SE 8u66 is a patch-set update, including all of 8u65 plus additional features (described in the release notes).
Oracle often does this。这完全取决于您作为客户希望如何处理风险。
Users should only use the corresponding PSU release if they are being impacted by one of the additional bugs fixed in that version as noted in the release notes.
8u65 有安全修复和 sets a new security "baseline" for companies to achieve Java 8 applications. 8u66 has those same security updates, plus additional bug fixes。但是，即使是错误修复有时也会导致行为发生变化，从而给用户带来兼容性问题。因此 8u66 中的更改是 可选（请注意，上面链接的基线仍然是 1.8。0_65，希望平台更稳定的公司可能更愿意只应用安全修复，这是必要的。
Oracle 当然没有义务以这种方式拆分他们的更新，但我相信他们的一些最厌恶风险的客户很高兴有这个选择。
如果您已有项目，请使用 8u65。如果您是从头开始使用 8u66。我正在安装 NetBeans 8.1，所以我使用 8u66，以防 NB8.1 代码有 8u65 中的 15 个错误中的任何一个，而 8u66 中没有解决。
我在 Haven and Hearth 上找到了这个信息：
u73(-b02) is the public release
u74(-b02) is public Bundled Patch Release (contains extra non security related fixes)
我想你只需要下载 74，那么。
这是官方的Oracle's answer:
Java CPU and PSU Releases Explained
Starting with the release of Java SE 7 Update 71 (Java SE 7u71) in October 2014, Oracle will release a Critical Patch Update (CPU) at the same time as a corresponding Patch Set Update (PSU) for Java SE 7.
Which Java version should I choose: the CPU or the PSU?
Oracle strongly recommends that all Java SE users upgrade to the latest CPU release available for a release family. Most users should choose the CPU release.
Users should only use the corresponding PSU release if they are being impacted by one of the additional bugs fixed in that version as noted in the release notes.
The subsequent CPU release will contain all of the fixes from the current PSU. For this reason, organizations should test the current PSU in their environment in anticipation of these fixes being included in the next CPU.
What is the difference between a Java CPU and PSU release?
Java SE Critical Patch Updates (CPU) contain fixes to security vulnerabilities and critical bug fixes. Oracle strongly recommends that all Java SE users upgrade to the latest CPU releases as they are made available. Java SE CPU releases are odd numbered versions (i.e. 7u71, 7u65 – see more on Java SE version numbering schemes here).
Java SE Patch Set Updates (PSU) contain all of fixes in the corresponding CPU, as well as additional non-critical fixes. Java PSU releases should only be used if you are being impacted by one of the additional bugs fixed in that version. The release notes call out the additional fixes available in Java SE PSU releases.
Is the cadence of CPU releases changing?
As before, Java SE CPU releases are scheduled for release on the Tuesday closest to the 17th day of January, April, July and October under the normal Oracle Critical Patch Update schedule.
Starting in October 2014 with the release of Java SE 7u71 (CPU) and Java SE 7u72 (PSU), Oracle plans to additionally release a corresponding PSU release along with each CPU release for Java SE 7. PSU releases provide organizations and developers with access to non-critical fixes in addition to the critical fixes contained in the corresponding CPU.
使用 u73 除非你知道你需要 u74 中的错误修复。