Here's the blurb from Macintouch:
Here's the Apple page:Java for OS X 2012-006 for Lion and Mountain Lion to improve "security, reliability, and compatibility by updating Java SE 6 to 1.6.0_37." Security patches address the following vulnerabilities:
Multiple vulnerabilities exist in Java 1.6.0_35, the most serious of which may allow an untrusted Java applet to execute arbitrary code outside the Java sandbox. Visiting a web page containing a maliciously crafted untrusted Java applet may lead to arbitrary code execution with the privileges of the current user. These issues are addressed by updating to Java version 1.6.0_37.
The release notes mention the following changes:
This release updates the Apple-provided system Java SE 6 to version 1.6.0_37 and is for OS X versions 10.7 or later.
This update uninstalls the Apple-provided Java applet plug-in from all web browsers. To use applets on a web page, click on the region labeled "Missing plug-in" to go download the latest version of the Java applet plug-in from Oracle.
This update also removes the Java Preferences application, which is no longer required to configure applet settings.
Java for Mac OS X 10.6 Update 11 "updates the Apple-provided system Java SE 6 to version 1.6.0_37 for Mac OS X v10.6."