Update: Mac OS 10.9.2

This update, Mac OS 10.9.2, was done on Feb 28, 2014.

Here is the space difference between before and after for the update:

Command: df -lak	Used(Kilobytes in 1024-blocks)
Before	…2,631,852
After	…512,228
Difference (A-B)	--2,119,624
Capacity	50%