Of particular importance, it fixes a system error (ID 3) which could occur 30 days after issuing the PMKey file as well as another PMKey verification startup crash. It also fixes an error where the message "Netscape could not be launched because it could not be found" could occur under certain circumstances if PowerMail was the originator of the "Open Application" AppleEvent.
Registered users should have received an email about this version last month. If you downloaded the version at that time, you need not download again. It's the same version.