Apple has released Supplemental Update 1.0 for Mac OS X 10.8.2. According to Apple it:
° Resolves an issue that may cause certain Japanese characters to appear incorrectly in Mail;
° Allows Safari to access secure sites when parental controls are enabled;
° Addresses an issue that may prevent systems with more than 64GB of RAM from starting up.
It’s available via the Mac App Store. When you install the update, you’ll have to restart your Mac.