What Java version should I use for a new Project, 6 or 7?

What java version is more stable/safe to be used in new projects, 6 or 7? I noticed both of them have had security fixes last months.

Thanks

Solution

Java 6 is EOF (End Of Life) and is not getting any other update and security fixes since February 2013. http://www.oracle.com/technetwork/java/eol-135779.html

Java 7 is the way to go unless you have technical constraints.