From my own experience of use, I would advise to download Combo Update if you have several poppies at home, since each model has its own delta-update build, which in total can weigh more than 729.2 MB of Combo Update, which can be put on all cars. In addition, if updated via Software Update, it sometimes does strange: it seems that this program does not check the update just downloaded for integrity. If all of a sudden there is something not enough, she will not pledge against this and will immediately start betting. Accordingly, any problems will arise after installation, to the extent that the computer does not want to download the updated system. A good cure for such cases is to re-install the Combo Update downloaded from the Apple site, as it accurately checks the update package before installation. Therefore, it is better to put Combo Update right away, especially if you already had problems with the Software Update program in the past.
Improves reliability when automatically syncing with MobileMe.
Mail client Mail
Solves the problems of reliability and synchronization with Notes.
Solves the problem of incorrectly filling out the BCC field when forwarding messages from the Sent Mailbox.
Parental control
Improves alignment with parental controls and application restrictions.
Solves the problem of time limitations in the work of full-screen games and when using the function of fast user switching.
Print
Solves a problem related to the fact that third-party printers can print to the wrong paper tray.
User accounts for non-administrators can now allow the addition and removal of printers by enabling the parental control feature and selecting the Manage Printers option.
Includes other improvements in print reliability and stability.