On October 20, Oracle released Java 8 Update 65. Hours later, they apparently released Java 8 Update 66.
It looks like there may have been some kind of screwup at Oracle, because the two versions seem to address many of the same issues. When I use the Java control panel to update to the most recent version, I end up with 8u65, and I’m never prompted to install 8u66. Presumably this confusion will be cleared up by Oracle in the next day or so.
Meanwhile, if you’re still using a web browser with Java enabled, you should install Java 8u65 as soon as you can. Java 8 Update 65 fixes a few bugs, including some related to security.
References:
- Oracle Critical Patch Update for October 2015
- Java 8 Update 65 release notes
- Java 8 Update 65 bug fixes
- Java 8 Update 66 release notes
- Java 8 Update 66 bug fixes
Update 2015Nov05: According to a post on The Java Source, a Java blog maintained by Oracle, “Java SE 8u66 is a patch-set update, including all of 8u65 plus additional features.” If you want the new features, you’ll have to download and install 8u66 manually, because Java’s own internal updater won’t do it.
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