Oracle has issued Java JRE 6u25. This update contains no security fixes, only performance enhancements. So the Java in the Ubuntu repo's will probably remain at 6u24.

If you want to install 6u25, you can do that manually. As follows:
http://sites.google.com/site/easylinuxtipsproject/java

Oracle's release notes concerning 6u25:
http://www.oracle.com/technetwork/ja...es-356444.html