With an update issued only a week ago, Apple has already released a new version of Mac OS X 10.6.5 server, in an effort to plug some holes in security flaws that were plaguing users of the earlier update. The former update, the 10H574, lacks a security patch built into latter version, the 10H575.Users who downloaded 10H574 may be subject to getting mail intended by others thanks to a problem with the Dovecot server. Obviously, this poses problems in the areas of information leakage, identity theft and personal privacy. The 10H575 should completely rectify the issue, only applicable to those who previously downloaded the 10H574 update within the past 2 weeks.It remains to be seen whether the new 10H574 will fix any other complaints regarding the original Mac OS X 10.6.5, though considering the pressing need to fix such a breach in personal security, Apple must be commended for taking such quick action to eradicate the issue. Other worries that have been circulating through the grapevine via forums and tech blogs may cause inconvenience for users but do not place any users at immediate risk.The 10H575 also entails smaller scale modifications that should further enhance user experience.Hopefully Apple will handle all concerns over time making for an even smoother, fully functional operating system, before the new release of what should be a much improved Mac OS C 10.7.