Apple has finally rolled out the much talked about Mac OS X 10.6.2 update. This update comes out as a security, compatibility and stability release. Among other fixes, it fixes a serious bug which caused users to lose their data when they logged in using a guest account. This update happens to be the second update since Snow Leopard was rolled out. This update is recommended for all users running Mac OS X, be it Mac OS X 10.6 or Mac OS X 10.6.1.