Java SE 6 End of Public Updates
Oracle no longer posts updates of Java SE 6 to its public download sites. All Java 6 releases up to and including 6u45 have been moved to the Java Archive on the Oracle Technology Network, where they will remain available but not receive further updates. Oracle recommends that users migrate to Java 7 in order to continue receiving public updates and security enhancements.
Apple just pushed its update 16 which is Java6u51, likely to be one of their last Java6 updates.