What is the MD5 or SHA1 checksum of the OS X 10.8.2 update?
They never post hashes because they make silent update of their combo updates!!!

the 10.8.2 has been modified between the first release date and december : they included the 10.8.2 Supplemental Update, and of course did not notify about it on their websites...
Build number has also been updated.

Thank you Apple to make updates even more transparent compared to Microsoft!