While installing Mac OS X on a PC is a tricky process in itself, updating your "Hackintosh" can be another challenge altogether.
As the community learns more about a particular system update, this news post will list all relevant information about the update in a convenient and sequential manner. However, there are always exceptions-- for instance, the OS X 10.8.2 update broke a hardware monitoring kext that caused certain Hackintoshes to become unbootable.
There are two main ways to install a Mac OS X system update.
The first method is to update your computer directly through the Mac App Store.
However, this method is generally not recommended, as it doesn't give you a large measure of control over the updating process.
Instead, the preferred method of updating a Hackintosh is to install a "combo update".