BlogsWeek.com

“Team Mambo today released a maintenance update for the 4.5.x series of sites. Dubbed version 4.5.5, this release was motivated by the formal release of the IE7 browser, which introduced some users to template display issues. The opportunity was also taken to correct several small issues in the system.”

4.5.5 is only for users of the 4.5.x series. Users of the 4.6.x series should not install this update. All 4.5.x users are encouraged to install 4.5.5 to avoid the possibility of your site visitors experiencing display issues in IE7.

For additional information, please read the release announcement.