A new version of Java has been released (version 7 update 15 and version 6 update 41), fixing four “Highly Critical” security vulnerabilities.
You can download the latest version here: http://www.java.com
Those running Windows can either chose to turn on automatic updates to be sure to always have the latest version: http://www.java.com/en/download/help/java_update.xml
Remember to delete any previous installed Java versions from your system when you update. See http://java.com/en/download/faq/remove_olderversions.xml for assistance with this.
This is the final public release of java 1.6.0 and Oracle will not provide more free security fixes for version 6.
We also suggest that users follow the guide lines in this post: http://bfblogg.wpengine.com/blog/2013/02/02/java-1-7-0_13-update-fixes-50-security-vulnerabilities/