Key Changes
This is a security release and we recommend all clients upgrade as soon as possible.
This is a maintenance to release to the 4.2 series address security issues.
As we prepare for our next large release, version 4.3, we do large security audits. We decided to apply those security enhancements to the 4.2 series so you can get them now if you prefer to not upgrade to 4.3 yet.
We would like to thank @newbie LAC for his assistance.